11:47 AM - Sean O'Sullivan (Wsh) signed a minor-league contract with the Nationals on Sunday, Connor Byrne of MLBTradeRumors.com reports.

10:44 AM - Sean O'Sullivan (Bos) (knee) was activated off the disabled list Thursday, and outrighted to Triple-A Pawtucket, Evan Drellich of the Boston Herald reports.

2:36 AM - Sean O'Sullivan (Bos) allowed six runs on six hits in three innings during a rehab start at Triple-A Pawtucket. He struck out four and didn't walk a batter.

7:28 AM - Sean O'Sullivan (Bos) (knee) will make a rehab start with Triple-A Pawtucket on Thursday, Ryan Hannable of WEEI reports.

3:50 PM - Sean O'Sullivan (Bos) was placed on the 15-day DL on Saturday with left knee tendinitis, Tim Britton of the Providence Journal reports.

5:19 AM - Sean O'Sullivan (Bos) didn't factor into the decision versus the Rays on Friday, giving up four earned runs on seven hits and a walk over five innings. He struck out four.

6:19 AM - Sean O'Sullivan (Bos) will start Friday's game against the Rays, Brian MacPherson of the Providence Journal reports.

1:16 AM - Sean O'Sullivan (Bos) allowed two runs on four hits and three walks while striking out two in Boston's win over the Angels on Sunday.

6:34 AM - Sean O'Sullivan (Bos) contract was purchased from Triple-A Pawtucket, MLB.com reports. He'll get the start Sunday against the Angels.

12:46 PM - Sean O'Sullivan (Bos) is scheduled to start Sunday's game against the Angels, Evan Drellich of the Boston Herald reports.

1:16 AM - Sean O'Sullivan (Bos) scheduled start for Triple-A Pawtucket was skipped on Thursday, Peter Abraham of the Boston Globe reports.

10:01 AM - Sean O'Sullivan (Bos) was outrighted to Triple-A Pawtucket on Wednesday, Pete Abraham of The Boston Globe reports.

6:31 PM - Sean O'Sullivan (Bos) was designated for assignment after his start Sunday, Mass Live reports.

1:13 AM - Sean O'Sullivan (Bos) will make at least one more start Sunday, when he faces the Astros, the Providence Journal reports.

7:31 PM - Sean O'Sullivan (Bos) (1-0) allowed four runs on 12 hits with three strikeouts over six innings in a win Tuesday against the Athletics.

11:21 AM - Sean O'Sullivan (Bos) is listed as the Red Sox's starter for Tuesday's game against Oakland in the official game notes, Brian MacPherson of the Providence Journal reports.

2:29 AM - Sean O'Sullivan (Bos) is the expected starter for Tuesday night's game against the Athletics, the Boston Globe reports.

11:47 AM - Sean O'Sullivan (Bos) was called up by the Red Sox on Friday, Michael Silverman of the Boston Herald reports.

6:23 AM - Sean O'Sullivan (Bos) was reassigned to minor league camp Saturday.

1:23 PM - Sean O'Sullivan (Bos) has signed a minor league contract with the Red Sox, Chris Cotillo of MLB Daily Dish reports.

4:37 PM - Sean O'Sullivan (Phi) accepted his assignment to Triple-A Lehigh Valley on Wednesday, CSN Philadelphia reports.

1:53 AM - Sean O'Sullivan (Phi) was outrighted to Triple-A Lehigh Valley after Monday's game, CSN Philadelphia reports.

2:15 AM - Sean O'Sullivan (Phi) will make his next start on Monday against the Dodgers, the Phillies' official site reports.

5:37 PM - Sean O'Sullivan (Phi) pitcher Sean O'Sullivan has shown nothing in regards to being picked up off the wire.

12:42 PM - Sean O'Sullivan (Phi) pitcher Sean O'Sullivan put together a solid afternoon, going six innings and yielding five harmless hits en route to his first win of the season.

5:58 PM - Sean O'Sullivan (Phi) pitcher Sean O'Sullivan allowed three runs over five innings Tuesday versus Pittsburgh.

9:38 AM - Sean O'Sullivan (Phi) sent RHP Sean O'Sullivan outright to Triple-A Lehigh Valley.

6:38 AM - Sean O'Sullivan (Phi) designated RHP Sean O'Sullivan for assignment.

6:31 PM - Sean O'Sullivan (Phi) O'Sullivan surrendered four earned runs in 5 2/3 innings Saturday in a loss to the Braves.

1:45 PM - Sean O'Sullivan (Phi) purchased the contract of RHP Sean O'Sullivan from Triple-A Lehigh Valley.

12:14 PM - Sean O'Sullivan (Phi) O'Sullivan will start the second game of Saturday's doubleheader against the Braves.

7:29 AM - Sean O'Sullivan (Phi) signed RHP Sean O'Sullivan to a minor league contract.

4:27 AM - Sean O'Sullivan (SD) sent RHP Sean O'Sullivan outright to Triple-A Tucson.

1:38 PM - Sean O'Sullivan (SD) designated RHP Sean O'Sullivan for assignment.

10:12 AM - Sean O'Sullivan (SD) activated RHP Sean O'Sullivan from the paternity leave list.

2:12 PM - Sean O'Sullivan (SD) placed RHP Sean O'Sullivan on paternity leave.

8:02 PM - Sean O'Sullivan (SD) O'Sullivan allowed three runs -- two earned -- over 6 1/3 innings in a loss to the Brewers on Wednesday.

2:49 PM - Sean O'Sullivan (SD) O'Sullivan will start on Wednesday in Milwaukee.

10:02 PM - Sean O'Sullivan (SD) O'Sullivan gave up two runs in five innings against the Giants in his Padres debut Friday.

2:56 PM - Sean O'Sullivan (SD) purchased the contract of Sean O'Sullivan from Triple-A Tuscon.

3:14 PM - Sean O'Sullivan (SD) Padres will call up Sean O'Sullivan from Triple-A Tucson to start on Friday against the Giants.