ARLINGTON, Texas — Xander Bogaerts is out of the lineup for a second consecutive day and third time in the last four with tightness in his groin. Tzu-Wei Lin is starting in Bogaerts' place at shortstop.

Manager John Farrell said Bogaerts had shown improvement from Sunday, when he was scratched from the lineup in the series finale at Toronto.

"There is still a little bit of tightness in there and we don't want to take a chance or risk it," Farrell said. "We're confident it's not a long-term thing."

Farrell said there is a "good chance" Bogaerts returns to the starting lineup on Tuesday.

Alongside Deven Marrero, Lin has provided an unexpected boost this past week. Over the last five games, the two have combined for 14 hits in 32 at-bats while playing terrific defense on the left side.

"Tzu-Wei and Deven both stepped in and given us everything we could have anticipated," Farrell said. "They've played very good defense, which is a priority."

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The Red Sox will have a position player starting in the All-Star Game after all. With Mike Trout unable to play due to injury, he will be replaced by the man who finished second to him in last year's MVP balloting: Mookie Betts.

Betts replaces Trout by virtue of receiving the most player votes among non-starters in the outfield.

It marks the second straight year Betts will start for the A.L. in the All-Star Game. It remains to be seen which position Betts mans in the outfield, next to New York's Aaron Judge and Houston's George Springer.

Betts was also named the American League's Player of the Week for the second time this season, following his eight-RBI barrage on Sunday.

"He gets on these hot streaks where seemingly there's a lot of damage to the swing," Farrell said. "The one thing that has always stood out about Mookie's approach to the game is not only a genuine humility, but an aptitude that is second to none. He is not afraid to expose himself in terms of not knowing everything and will ask great questions. But the aptitude to apply it quickly, that’s what sets him apart."

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Eduardo Rodriguez will not return to the Red Sox rotation before the All-Star break, Farrell said Monday. Rodriguez will make his second rehab start on Tuesday for Triple-A Pawtucket, after which the team will either place him in the major-league bullpen right before the break or have him throw one more rehab start.

In either case, Rodriguez's return to the rotation would come after the break — just in time for a week in which the Red Sox will need six starters because of a Sunday doubleheader against the Yankees on July 16.

Rodriguez hasn't pitched since June 1 because of a dislocated right knee.

Rodriguez is scheduled to throw 85 to 90 pitches for the PawSox on Tuesday.

With left-hander Martin Perez starting for the Rangers, Andrew Benintendi was on the bench on Monday for the Red Sox. While Farrell has said Benintendi isn't a platoon player, the rookie does find himself in a platoon role for now with Chris Young.

"He's been the guy that we've obviously platooned with CY," Farrell said Monday. "Long term, he's going to get at-bats against left-handers. He's that good of a hitter."

Benintendi has started just one of Boston's last 10 games against a left-handed pitcher. This is part of the fallout from Hanley Ramirez's shoulder injury, which has prevented him from playing first base against lefties. That means Young can only enter the lineup at the expense of an outfielder, and given the way Jackie Bradley, Jr. has swung the bat against lefties — he owns a 1.161 OPS against them this season — Benintendi is the odd man out.

Benintendi has been adequate against left-handed pitching in terms of his batting average (.262) and on-base percentage (.340). However, he has hit for virtually no power against southpaws, with just two extra-base hits in 47 plate appearances.

"It's not like it's a decided split negative when he's faced left-handed pitching," said Farrell. "In time, I could see him producing as Jackie is."

Young himself has had a much tougher go of it against lefties this season than last. Like Benintendi, he owns just two extra-base hits off southpaws in his 58 plate appearances.