FOX Sports' Ken Rosenthal and Jon Morosi report that the Mariners are interested in Grant Balfour and Brian Wilson.

The report also adds that the Mariners are interested in additional arms as they search for a closer, though no other names are revealed. Danny Farquhar fared well as Seattle's closer down the stretch last season, but it appears that the M's are more comfortable with him in a setup role.

Oakland free agent closer Grant Balfour is attracting interest from the Tigers, Yankees, Rockies, Angels, and Rays, according to Susan Slusser of the San Francisco Chronicle.

Oakland did not make a qualifying offer to Balfour, so a team wouldn't have to surrender a draft pick to sign him. The intense Australian closer collected a 2.59 ERA over 62 2/3 innings this past year.

The A's did not make a qualifying offer to Grant Balfour.

No surprise there, as one year, $14.1 million would have been an overpay for the Australian closer. Balfour should do well on the open market this winter now that teams don't have to sacrifice a top draft pick to sign him. He had a 2.59 ERA in 62 2/3 innings this year.

Grant Balfour took his third blown save after giving up a two-run homer to the Angels' Josh Hamilton on Wednesday.

38-for-41 in save chances is still outstanding, but there's some cause for concern in that Balfour has given up runs in five of his last 10 appearances. The A's have cut back on his workload this month, so he should still have quite a bit left in the tank. Fortunately for them, the Rangers' struggles have given them some margin for error.

Grant Balfour is unavailable for Saturday's game against the Astros after throwing 37 pitches while converting a save in Friday's contest.

A's skipper Bob Melvin hinted at the fact that Balfour may also be unavailable on Sunday, but that it would depend on how the veteran right-hander is feeling. Ryan Cook is the favorite to see save chances while Balfour rests.

Grant Balfour gave up four runs for his second blown save of the season in Thursday's walk-off loss to the Tigers.

Balfour entered the bottom of the ninth with a 6-3 lead, but the Tigers plated four runs on two hits and two walks, the big blow of which was a walk-off three run homer from Torii Hunter. The Aussie has been lights out all season, allowing just two runs (one earned) in 11 innings since his last blown save back on July 26, but he just didn't have it this day.

Grant Balfour earned his 32nd save of the season Saturday as the A's beat the Orioles 2-1.

Balfour helped protect a Coco Crisp go-ahead ninth-inning home run by retiring all three batters he faced in the bottom of that frame -- two via strikeout. He should remain a superb fantasy option down the stretch.

Grant Balfour converted his 30th save of the season Sunday despite walking three, throwing a wild pitch and allowing a run to Toronto.

Fortunately, Balfour was gifted with an easy save situation, entering the ninth inning nursing a 6-3 lead. A Brett Lawrie RBI double pulled Toronto within two runs, but Balfour coaxed a based loaded game-ending ground out from Jose Reyes. Despite the shaky outing, the Australian reliever still possesses a 1.96 ERA and 1.07 WHIP. He's converted 30-of-31 save chances this year.

Grant Balfour blew his first save of the season on Tuesday, surrendering three runs -- two earned -- to the Astros in 1/3 of an inning.

Balfour recorded just one out in the outing, giving up a single to Justin Maxwell, a two-run homer to Matt Dominguez and a double to Jonathan Villar, who would score the winning run on an error by catcher Derek Norris. He'd been a perfect 26-for-26 previously, so we're not too concerned about one hiccup, Astros or otherwise.

Grant Balfour hasn't allowed a run over his last eight appearances.

Balfour is currently sitting on a 1.63 ERA, the lowest of his career outside of a spectacular 2008 spent as Tampa Bay's setup man. He's 25-for-25 in save conversions to go with a 1.03 WHIP and 41/13 K/BB rate.

Grant Balfour hasn't allowed a run since June 23.

Balfour's three-run implosion that day was the only appearance in June or July where he's allowed a run. The intense reliever has been one of the best closers in the game this season, nailing down all 24 save chances while posting a 1.72 ERA and 1.06 WHIP.

Grant Balfour converted his 21st save of the season with a scoreless ninth inning in Thursday's win over the Cubs.

Balfour allowed a two-out single to Starlin Castro, which was just the Cubs' second hit of the game. Castro then moved to second after Nate Schierholtz reached on an error, but Balfour got Alfonso Soriano to fly out to end it. The fiery reliever has been one of the best closers in the game this season, nailing down all 21 save chances while posting a 1.85 ERA and 1.09 WHIP.

Grant Balfour allowed a three-run walk-off home run to Kendrys Morales in the 10th inning of Sunday's loss to the Mariners.

The frame began well for the Aussie hurler, who induced a ground out from Justin Smoak and then struck out Mike Zunino. Unfortunately, the whiff came on a wild pitch, allowing Zunino to reach. Balfour subsequently allowed a single and the Morales homer to end the game. Balfour entered the contest with a 1.17 ERA. It now sits at 2.03 to go with a 1.13 WHIP and 18 saves (zero blown).

Grant Balfour nailed down a save with a scoreless 10th inning in Thursday's extra innings win over the White Sox.

It was a nail biter, as Balfour gave up a leadoff single to Alejandro De Aza, who was then sacrificed to second base. After and Alex Rios groundout pushed De Aza to third, Adam Dunn sent a ball to the warning track in left field that Yoenis Cespedes hauled in. Balfour is now a perfect 14-for-14 in save chances and boasts a 1.42 ERA and 1.14 WHIP.

Grant Balfour pitched a scoreless ninth inning to preserve the A's win over the Rangers on Tuesday.

Balfour struck out a batter and now owns a 1.47 ERA through 18 1/3 innings this year. He has yet to blow a save in nine chances.

Grant Balfour converted his eighth save of the season with a scoreless ninth inning in Saturday's win over the Royals.

Balfour walked a batter but was otherwise unburdened. He entered this weekend with six saves but has picked up a pair in consecutive 2-1 wins against the Royals. The typically reliable Balfour is eight-for-eight in save conversions and holds a 1.56 ERA and 1.21 WHIP.

Grant Balfour converted his fifth save of the season with a scoreless inning in Sunday's win over the Yankees.

Balfour allowed a two-out single to Brett Gardner and then issued an intentional pass to Robinson Cano. He was able to put out the fire, though, getting a high fastball by Vernon Wells for his second strikeout of the inning. The fiery reliever is a perfect 5-for-5 in save chances this season, and he boasts a 2.02 ERA and 1.28 WHIP.

Grant Balfour picked up his first save of the season Saturday in the A's win over the Astros.

Balfour looked sharp, allowing no hits and striking out one of the three batters he faced. He emerged as an excellent fantasy closer last season and should again be a reliable option in 2013 even if the A's don't win as many games.

Grant Balfour (knee) threw a perfect inning while striking out one Thursday in his Cactus League debut.

The successful appearance followed a one-inning stint in a minor league game on Monday. Balfour is expected to make four more Cactus League appearances before the A's evaluate whether he's ready for the start of the season. It would be a surprise if they deem him unready.

Grant Balfour (knee) made a successful one-inning appearances in a minor league game Monday.

"It was fine," he said. "I wasn't thinking about (his knee) at all, so now it's about getting ready and going through those speed bumps I get. It's Spring Training -- same old, same old, trying to get my arm going." Balfour is slated to make his Cactus League debut Thursday, which will be the first of five spring training outings. He should be ready for Opening Day if he can avoid a setback.