6:46 AM - Justin Slaten (BOS) struck out one over a scoreless inning in the second game of Monday's doubleheader against Toronto.

5:24 PM - Justin Slaten (BOS) Red Sox activated Slaten (elbow) from the 15-day injured list Monday, Jen McCaffrey of Athletic reports.

7:01 AM - Justin Slaten (BOS) threw a bullpen session prior to Sunday's game against the Diamondbacks, Jen McCaffrey of The Athletic reports.

8:16 AM - Justin Slaten (BOS) manager Alex Cora was non-committal Saturday when asked if Slaten (elbow) will be activated following one rehab outing, MLB.com reports.

8:08 AM - Justin Slaten (BOS) (elbow) allowed one run on one hit and one walk while striking out one over a third of an inning for Double-A Portland on Friday.

7:05 PM - Justin Slaten (BOS) (elbow) is expected to begin a rehab assignment Friday, Chris Cotillo of MassLive.com reports.

7:06 PM - Justin Slaten (BOS) (elbow) is scheduled to throw a bullpen session Monday and start a minor-league rehab assignment shortly after, Ian Browne of MLB.com reports.

7:44 PM - Justin Slaten (BOS) (elbow) has been cleared to throw up to 120 feet, Pete Abraham of The Boston Globe reports.

4:17 PM - Justin Slaten (BOS) (elbow) remains limited to playing catch from 75 feet out as of Monday, Gabrielle Starr of the Boston Herald reports.

8:43 AM - Justin Slaten (BOS) (elbow) played catch Saturday, MLB.com reports.

4:11 PM - Justin Slaten (BOS) Red Sox placed Slaten on the 15-day injured list with right elbow inflammation, retroactive to July 9, Mac Cerullo of the Boston Herald reports.

10:10 AM - Justin Slaten (BOS) allowed two runs on two walks and struck out one over two-thirds of an inning in Thursday's 6-5 extra-innings win over Miami.

10:27 AM - Justin Slaten (BOS) (2-2) was charged with Saturday's loss to the Cardinals. He allowed five runs (four earned) on five hits while striking out one over one inning.

8:48 AM - Justin Slaten (BOS) (2-1) was tagged with Tuesday's loss, allowing two runs on two hits and one walk while striking out one in a 4-2 loss to Atlanta.

11:19 AM - Justin Slaten (BOS) (2-0) earned the win over the Cubs on Saturday, striking out two over two scoreless innings.

9:36 AM - Justin Slaten (BOS) earned his third hold of the season, allowing one run on two hits while striking out one over 2.2 innings in Sunday's 5-4 win over the Angels.

8:53 AM - Justin Slaten (BOS) allowed one walk and struck out one over two scoreless innings in Thursday's 9-4 extra-inning loss to Baltimore.

8:51 PM - Justin Slaten (BOS) struck out one batter over 2.1 perfect frames and earned a save over the Mariners on Sunday.

4:52 PM - Justin Slaten (BOS) Red Sox informed Slaten on Sunday that he's made the Opening Day roster, Rob Bradford of WEEI.comreports.

8:29 AM - Justin Slaten (BOS) topped out at 97 mph during a scoreless relief inning Saturday, Julian McWilliams of the Boston Globe reports.

3:20 PM - Justin Slaten (BOS) Red Sox acquired Slaten from the Mets on Wednesday in exchange for Ryan Ammons and cash considerations.