RHP George Kontos was placed on the 15-day disabled list Tuesday, retroactive to April 18, because of a strained flexor tendon in his right arm. Kontos was off to a strong start for the Giants this season, having compiled a 1.59 ERA in eight games. He had allowed five hits in 5 2/3 innings.

RHP George Kontos, along with his 1.59 ERA, will go on the disabled list due to a flexor strain in his pitching arm. The arm was bothering for a little while, and tests revealed the strain. "He's not going to pick up a ball for a week," Giants manager Bruce Bochy said. "That hurt us. We could have used him." Kontos has appeared in eight games this season.

Kontos has made the Opening Day roster for the Giants, CSN Bay Area reports.

Despite a 4.50 ERA this spring, the Giants opted to add Kontos to their 25-man roster. He spent the majority of the 2014 season with Triple-A Fresno, but posted a solid 2.78 ERA over 32.1 innings in the majors. Kontos features a low-90s fastball and a hard-biting slider. He will be used as a middle reliever this season.

Kontos was recalled from Triple-A Fresno on Monday, MLB.com reports.

Kontos was with the Giants for only one day last week as the 26th man in their doubleheader with the Cubs, but it looks like he might stick with the big club for the rest of the season following Monday's promotion. The right-hander has posted a 3.00 ERA and 1.19 WHIP over 21 innings (14 appearances) with the Giants out of the bullpen this season.

Kontos was recalled by the Giants to serve as the 26th man for the second game of Thursday's doubleheader with the Cubs.

Kontos will just be up with the Giants for one day to give the team an extra relief option.

Giants optioned RHP George Kontos to Triple-A Fresno.

Kontos has gone back-and-forth between the majors and minors a few times this season even though he's pitched well with the big club, posting a 3.00 ERA while striking out 21 over 21 frames. He'll be back eventually.

Giants recalled RHP George Kontos from Triple-A Fresno.

Fresno owns a 3.07 ERA, 1.16 WHIP, and 16/5 K/BB ratio in 14 2/3 innings this season with San Francisco. The 29-year-old righty will return to a middle relief role.

Giants optioned RHP George Kontos to Triple-A Fresno.

The 29-year-old hurler posted a 3.07 ERA, 1.16 WHIP and 16/5 K/BB ratio over 14 2/3 innings with the Giants. He'll surely be back in the Giants bullpen at some point during the season.

Giants recalled RHP George Kontos from Triple-A Fresno.

Kontos tossed two scoreless innings in a short stint with the Giants earlier this season. The 28-year-old right-hander will operate in a middle relief role.

Giants optioned RHP George Kontos to Triple-A Fresno.

Kontos stay with the Giants lasted just a couple of days, appearing in one game and throwing a pair of scoreless innings. He'll continue to function as organizational bullpen depth, and should be back with the big league club soon.

Giants recalled RHP George Kontos from Triple-A Fresno.

Kontos failed to make the Giants' bullpen out of spring training and had some underwhelming numbers this season at Triple-A. He will pitch in middle relief.

Giants optioned RHP George Kontos to Triple-A Fresno

The 28-year-old right-hander struggled a bit in Cactus League play, posting a 3.38 ERA, 1.69 WHIP and 2/3 K/BB ratio over 5 1/3 innings of work. He appeared in 52 games with the Giants in 2013, and should get plenty of chances to work out of their pen again in 2014.

Giants recalled RHP George Kontos from Triple-A Fresno

Kontos returns to a 5.05 ERA and 1.49 WHIP over 46 1/3 innings this season with the Giants. The 28-year-old will provide bullpen depth.

Giants optioned RHP George Kontos to Triple-A Fresno.

Kontos has a rough 5.05 ERA and 1.49 WHIP in 46 1/3 innings this season with San Francisco. The right-hander will try to turn it around in the minor leagues.

Giants recalled RHP George Kontos from Triple-A Fresno.

Kontos holds a 5.76 ERA but has struck out a batter per inning during his time with the big club this season. He has appealed his previous three-game suspension for throwing at the Pirates' Andrew McCutchen, so he's eligible to pitch Monday.

George Kontos has been suspended three games for throwing at Andrew McCutchen on Tuesday night.

Kontos was optioned to the minors on Wednesday, so he'll serve the suspension when (or if) he gets called back up. The 28-year-old right-hander has posted an ugly 5.76 ERA in 31 relief appearances this season. Giants manager Bruce Bochy also got a one-game suspension.

Giants optioned RHP George Kontos to Triple-A Fresno.

Sandy Rosario was called up to replace him on the active roster. Kontos, 28, has a rough 5.76 ERA in 31 appearances this season. He'll try to get back on track in the minors.

George Kontos has allowed six runs on 11 hits and two walks in his last three appearances.

The Northwestern product has seen better days. Though Kontos' 5.79 ERA this season is undoubtedly inflated by some bad luck, his days on the active roster may be numbered.

Giants recalled RHP George Kontos from Triple-A Fresno.

Kontos was acquired from the Yankees this offseason and has a 1.74 ERA in 23 games in the minors. He could be a useful bullpen piece now that he's fully healthy.

Giants acquired RHP George Kontos from the Yankees for C Chris Stewart.

Stewart was out of options, so the Giants did pretty well here. Kontos only made five appearance this spring due to an oblique injury, but had an impressive 2.62 ERA and 91/26 K/BB ratio in 89 1/3 innings last season with Triple-A Scranton/Wilkes-Barre. He could be a useful bullpen piece at some point.