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Sean O'Sullivan | Starting Pitcher | #62

Team: Boston Red Sox
Age / DOB:  (28) / 9/1/1987
Ht / Wt:  6'1" / 245
Bats / Throws: Right / Right
College: Grossmont (CA) JC
Drafted: 2005 / Rd. 3 (0) / LAA
Contract: view contract details

Latest News

Recent News

Red Sox sent RHP Sean O'Sullivan outright to Triple-A Pawtucket.
O'Sullivan was designated for assignment by the Red Sox on Sunday after allowing six runs -- five earned -- over 4 1/3 innings to the Astros. He had a 7.94 ERA and 1.85 WHIP in 11 1/3 innings with Boston. May 18 - 1:46 PM

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Sean O'Sullivan was not long for Sunday's start against the Astros, surrendering six runs (five earned) on five hits over 4 1/3 innings.

O'Sullivan's parting gift for Sunday's horrendous start? The Red Sox designated him assignment. Ouch. He was shellacked for a three-run homer by Luis Valbuena in the second inning, a solo homer by Carlos Correa in the third and a two-run double by Valbuena (yet again) in the fifth before manager John Farrell mercifully pulled the plug. In 11 1/3 innings with the Sox this season, he held a 7.94 ERA, 1.85 WHIP and 7/2 K/BB ratio across 11 1/3 innings. He could pass through waivers without being claimed.
May 15 - 6:18 PM

Red Sox designated RHP Sean O'Sullivan for assignment.

No corresponding roster move has been announced yet, but the Red Sox are expected to recall a position player on Monday (possibly Marco Hernandez). O'Sullivan registered a 7.94 ERA, 1.85 WHIP and 7/2 K/BB ratio over his 11 1/3 innings with the big league club. He's likely to pass through waivers unclaimed where he'll continue to function as organizational depth.
May 15 - 5:42 PM

Sean O'Sullivan will start against the Astros on Sunday.

O'Sullivan surrendered four runs on 12 hits over six innings in Tuesday's win over the A's. Eduardo Rodriguez (knee) will make at least one more rehab start, affording O'Sullivan an extended look in the rotation. The 28-year-old right-hander is not fantasy relevant.
May 11 - 4:39 PM

Sean O'Sullivan was good enough to pick up a win Tuesday, yielding four runs over six frames in a 13-5 victory over the Red Sox.

O'Sullivan didn't walk anyone, but he gave up 12 hits while striking out three. It was far from a tidy outing, which was to be expected, but with the Red Sox blowing the A's out they got what they needed from O'Sullivan. It's unclear whether he'll get another start, but if he does it will be against the Astros this weekend.
May 10 - 11:12 PM

Red Sox manager John Farrell indicated that Sean O'Sullivan is still expected to start on Tuesday.

The club plans to meet with Eduardo Rodriguez on Monday to determine if he'll make another rehab start or will rejoin the Red Sox rotation, but it sounds as though either way O'Sullivan will get a chance. He isn't worth using for fantasy purposes.
May 8 - 6:13 PM

Sean O'Sullivan is available to start Tuesday against the Athletics.

The Red Sox are tentatively expecting Eduardo Rodriguez (knee) to return Tuesday but if that doesn't pan out, they'll turn to O'Sullivan. The right-hander worked out of the bullpen Saturday, pitching one inning in a blowout loss to the Yankees.
May 7 - 5:11 PM

Red Sox purchased the contract of RHP Sean O'Sullivan from Triple-A Pawtucket.

O'Sullivan has put up a 3.00 ERA and 32/5 K/BB ratio over 33 innings for Pawtucket this season. He'll work in long relief.
May 6 - 3:39 PM

Red Sox re-assigned RHP Sean O'Sullivan to minor league camp.

With his departure, the Red Sox are down to 45 players in major league camp. The 28-year-old hurler will provide rotation insurance for the Red Sox at Triple-A Pawtucket.
Mar 19 - 9:56 AM

Red Sox signed RHP Sean O'Sullivan to a minor league contract.

The 28-year-old made 13 dreadful starts for the Phillies in 2015, compiling a 6.08 ERA, 1.61 WHIP and 35/20 K/BB ratio over 71 frames. He's nothing more than organizational rotation depth for the Red Sox.
Fri, Dec 11, 2015 11:21:00 PM

Phillies sent RHP Sean O'Sullivan outright to Triple-A Lehigh Valley.

O'Sullivan got the boot after he threw 123 pitches in 5 1/3 innings while allowing seven runs (six earned) Monday against the Dodgers. The 27-year-old has posted an ugly 6.08 ERA across 13 starts this season. Only Rick Porcello, Kyle Lohse, and Jerome Williams have a higher ERA among pitchers with at least 70 innings pitched. It's unclear who will replace him in Philadelphia's starting rotation.
Tue, Jul 7, 2015 08:32:00 AM

Sean O'Sullivan threw a career-high 123 pitches in 5 1/3 innings, yielding seven runs (six earned) but got a no-decision as the Phillies lost to the Dodgers on Monday.

The Phillies backed him up with plenty of run support, but it went for naught. Yasmani Grandal struck the big blow, swatting a three-run home run to tie the game at 6-6 in the fifth inning. Overall, he relented eight hits and a pair of walks while striking out three. O'Sullivan has an unsightly 6.08 ERA with a 1.61 WHIP and a 35/20 K/BB ratio over 71 innings. He'll close out the first half with a start in San Francisco against the Giants.
Tue, Jul 7, 2015 02:39:00 AM

Sean O'Sullivan didn't have anything working in a loss to the Brewers on Monday, surrendering six runs on 12 hits in five innings.

O'Sullivan limited the Brewers to only three runs through five innings, but things fell apart in the sixth inning when he allowed four straight hits before departing. Justin De Fratus came in and allowed two more hits before plugging the leaky ship. Along with the 12 hits, O'Sullivan walked one and struck out three. His ERA moves up to 5.76 with a 1.58 WHIP and a 33/18 K/BB ratio in 66 2/3 innings.
Mon, Jun 29, 2015 10:54:00 PM

Sean O'Sullivan was knocked around Tuesday, allowing 10 hits and six runs over 4 1/3 innings against the Yankees.

O'Sullivan gave up four home runs on the night, serving up jacks to Brett Gardner, Chase Headley, Alex Rodriguez and Garrett Jones. He didn't take the loss -- CC Sabathia wasn't much better on the other side -- but the no-decision left him still without a win since May 17. The right-hander will carry a 5.34 ERA and 1.50 WHIP into Monday's contest with the Nationals.
Wed, Jun 24, 2015 12:16:00 AM

Sean O'Sullivan was effective over his five innings on the mound during Wednesday's win over the Orioles, allowing just one run while striking out seven.

The only run to score against O'Sullivan came at the very start of the contest, when Manny Machado launched a solo home run off the right-hander. With the strong (if relatively short) effort, O'Sullivan dropped his ERA from 5.08 to 4.79. That might look better aesthetically, but his season on the whole doesn't impress. In addition to that ERA mark, O'Sullivan also holds a bloated 1.44 WHIP and a hum-drum 27/14 K/BB ratio over 56 1/3 innings. He'll take to the Bronx for a showdown with the Yankees in his next scheduled start.
Thu, Jun 18, 2015 03:42:00 PM

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