The Red Sox have opted for an opener in the second game of Monday’s doubleheader, announcing that right-hander Zack Kelly will start the nightcap.

Kelly has made two starts as an opener this season, and overall he is 5-2 with a 2.74 ERA on the year. He will most likely pitch an inning or two, and after that the Red Sox could either go with a full bullpen game or hand the ball to Cooper Criswell or Brad Keller, either of whom could pitch into the fifth or sixth as a bulk reliever.

Offensively the Red Sox will load up with lefties against Toronto Blue Jays right-hander Jose Berrios (12-9, 3.79). Jarren Duran, Wilyer Abreu, Triston Casas and Rafael Devers will bat one through four, with Boston’s outfield consisting of Tyler O’Neill in left, Duran in center and Abreu in right. Rookie Mickey Gasper will start at second base, Connor Wong will catch and Ceddanne Rafaela will start at shortstop.

Red Sox lineup

Jarren Duran CF

Wilyer Abreu RF

Triston Casas 1B

Rafael Devers 3B

Tyler O’Neill LF

Masataka Yoshida DH

Connor Wong C

Mickey Gasper 2B

David Hamilton SS

Zack Kelly P

Broadcast info

When: 7:10 p.m.

Where: Fenway Park, Boston

How to watch: NESN, MLB Network (out-of-market only), WEEI 93.7 FM, WCCM 1490 AM (Spanish)