Betts (concussion) was sent to Double-A Portland on Sunday to begin a rehab assignment, Gordon Edes of ESPN Boston reports.

After taking batting practice without any complications Saturday, Betts will get some work in with the minor-league affiliate, likely for a couple of games. Betts has been out for just over a week with the concussion symptoms, so he's probably not in need of a lengthy rehab assignment before slotting back in as Boston's everyday center fielder.

Betts (concussion) took batting practice Saturday with the Red Sox at Comerica Park in Detroit, the Providence Journal reports.

The Red Sox' plan was to submit its final concussion-protocol paperwork with Major League Baseball following the workout. That would put Betts in position to begin a minor league rehabilitation assignment Sunday, when Double-A Pawtucket will play in nearby Akron.

The tentative plan put forth by manager John Farrell has Betts (concussion) being activated this coming Tuesday in Miami, the Boston Globe reports.

Betts' concussions symptoms have passed and he joined the Red Sox in Detroit, where he hit in a batting cage and played catch Friday. He'll go through a full on-field workout Saturday and could start a brief minor-league rehab assignment Sunday.

Boston Red Sox outfielder Mookie Betts could be activated from the disabled list Tuesday after recovering from a concussion, according to the Boston Globe.

Boston Red Sox outfielder Mookie Betts could be activated from the disabled list Tuesday after recovering from a concussion, according to the Boston Globe. Betts' concussion symptoms have passed and he joined the team in Detroit, where he hit in a batting cage and played catch Friday. He will go through a full on-field workout Saturday and could begin a brief minor-league rehab assignment Sunday. “I never really experienced anything of that nature,” Betts said about the concussion symptoms. “That was a first.” Betts suffered the injury July 28 when he fell over the outfield wall at Fenway Park and into the bullpen, hitting his head on the way down. Betts is hitting .265 with 10 home runs, 48 RBI and 13 stolen bases in 97 games this season after he hit .291 with five home runs and seven stolen bases in 52 games last year.

Betts (concussion) is free of any concussion-like symptoms and will go through an on-field workout Friday, Pete Abraham of the Boston Globe reports.

Betts appears to be past the concussion he suffered last week, but he's unlikely to rejoin the team this weekend as he'll need some time to ramp up baseball activities. His return will be a welcome one for the Red Sox as Jackie Bradley's continued struggles at the plate have made for a glaring hole in their lineup.

Boston Red Sox outfielder Mookie Betts is free of any concussion symptoms, according to the Boston Globe.

Boston Red Sox outfielder Mookie Betts is free of any concussion symptoms, according to the Boston Globe. Betts will go through an on-field workout Friday before he is cleared to return to baseball activities.

Betts (concussion) met with a specialist Wednesday, Pete Abraham of the Boston Globe reports. Betts will rejoin the team Thursday but will not immediately return to the lineup.

Betts has been on the 7-day concussion DL since last week Wednesday, and while he's shown improvement, it's still unclear when, exactly, he'll be back on the field. However, the fact that he's rejoining the team looks to be a sign that he won't be sidelined too much longer.

Boston Red Sox outfielder Mookie Betts, recovering from a concussion, will rejoin the team Thursday after meeting with a specialist Wednesday, according to the Boston Globe.

Boston Red Sox outfielder Mookie Betts, recovering from a concussion, will rejoin the team Thursday after meeting with a specialist Wednesday, according to the Boston Globe. Betts will not immediately be inserted into the starting lineup.

Betts (concussion) began exertion tests Sunday and will be re-examined during the middle of the week, the Boston Globe reports.

Betts, whose symptoms subsided over the weekend, will not travel to New York with the team but will join them later in the week when Boston kicks off a series in Detroit. He could begin baseball related activities there.

Boston Red Sox outfielder Mookie Betts began exertion tests Sunday while recovering from a concussion, according to the Boston Globe.

Boston Red Sox outfielder Mookie Betts began exertion tests Sunday while recovering from a concussion, according to the Boston Globe. Betts will be examined sometime in the next three days.

Manager John Farrell said Sunday that Betts (concussion) has shown improvement in his recovery in recent days, Brian MacPherson of the Providence Journal reports.

According to Farrell, Betts is no longer experiencing any headaches or dizziness after he took a head-first tumble over the bullpen fence while attempting to make a catch in last Tuesday's game. With Betts seemingly progressing well through the concussion protocol, he should be cleared to resume baseball activities later this week, and a return from the 7-day DL likely to come shortly after that.

Boston Red Sox manager John Farrell said Sunday that outfielder Mookie Betts has shown improvement in his recovery from a concussion over the past few days, according to the Providence Journal.

Boston Red Sox manager John Farrell said Sunday that outfielder Mookie Betts has shown improvement in his recovery from a concussion over the past few days, according to the Providence Journal. Farrell noted that Betts is no longer experiencing any headaches or dizziness after he took a head-first tumble over the bullpen fence at Fenway Park on Tuesday while attempting to make a catch. While he is showing improvement, Betts has not been cleared for baseball activities. "Treadmill, bike," Farrell said about what work Betts has been doing in his recovery. "But even when he says he runs up stairs there's no dizziness, there's no pressure in the head. That wasn't the case two days ago. So like I said, seemingly he's turned a corner." Betts is expected to begin baseball activities next weekend if he does not suffer any setbacks.

Betts has been placed on the 7-day concussion DL, CSN Northeast's Sean McAdam reports.

As expected, Betts will hit the DL after crashing over the outfield wall and hitting his head during Tuesday's contest. He'll miss a minimum of seven days, and the Sox have recalled Jackie Bradley, Jr. to take his roster spot. Bradley, Jr. is in Wednesday's lineup, playing center field.

Boston Red Sox outfielder Mookie Betts was placed on the 7-day concussion disabled list Wednesday, according to CSN Northeast.

Boston Red Sox outfielder Mookie Betts was placed on the 7-day concussion disabled list Wednesday, according to CSN Northeast. Betts suffered a head injury as he crashed over the outfield wall during Tuesday's game and will be out until at least Aug. 4.

Betts (head) is likely to be placed on he 7-day concussion DL, the Boston Herald reports. "He has symptoms consistent with a concussion," Red Sox manager John Farrell said. "He's being examined further right now. At a minimum, he'll have to go through the MLB protocol to be cleared. So, before stating what he exactly has, we have to get further information from the tests."

Betts departed Tuesday's game early after hitting his head while tumbling over the center field wall, and the team expects him to miss time with concussion-like symptoms. While Betts is yet to officially be placed on the 7-day DL, it seems very likely, and reports are already swirling that Jackie Bradley, Jr. will be on his way to Boston from Triple-A.

Betts left Tuesday's game with a head injury following a leap over the bullpen fence as he caught a fly ball, Alex Speier of The Boston Globe reports.

Reports state that it looked as if Betts was being tested for a concussion in the bullpen, but with the way the outfielder landed, it looked like it could have been an injury to the neck as well. The Red Sox should provide an update regarding the injury later on Tuesday.

Boston Red Sox outfielder Mookie Betts suffered a head injury Tuesday against the Chicago White Sox when he fell over the bullpen fence catching a fly ball, according to the Boston Globe.

Boston Red Sox outfielder Mookie Betts suffered a head injury Tuesday against the Chicago White Sox when he fell over the bullpen fence catching a fly ball, according to the Boston Globe. Betts was treated for a concussion and possible next injury, though the severity is uncertain.

Betts is out of the lineup Wednesday against Houston.

With Betts out of the lineup, the Red Sox will use Dustin Pedroia in the leadoff spot Wednesday against Houston's Collin McHugh. Alejandro De Aza will take over in center field for Betts, who is 1-for-20 since the All-Star break.

Betts went 2-for-4 with a double, a triple, an RBI and a run Saturday against the Yankees.

Betts scored a run for a fourth straight game and filled up the stat sheet with two extra-base hits. The 22-year-old has more extra-base hits (48) than strikeouts (42), and should continue to be an excellent source of runs from atop the Red Sox order. Betts stole 40 bases while splitting time between the minors and Boston last season, so it wouldn't be surprising to see him push for 30 steals if he starts running just a tad more after the All-Star break.

Betts went 2-for-3 with two doubles, a walk, a run scored and three RBI in Saturday's win over the Astros.

Betts' big day Saturday made up for a base-running blunder that may have cost the Red Sox a win Friday night. He now has a six-game hitting streak (12-of-28) with five extra-base hits, six runs and seven RBI.