Here's the matchup from redsox.com
Red Sox: Lester's unbeaten streak was halted at 11 games in his last outing, though the lefty still turned in a decent performance
(seven innings, four runs) against the White Sox. At Fenway Park this season, Lester is 6-1 with a 2.87 ERA in 12 starts. Left-handers are hitting just .233
against Lester. This will be the first time Lester has faced the Rangers since April 19, when he allowed 10 hits and three runs over 6 1/3 innings. In that
one, he got a no-decision.

Rangers: Mendoza is 1-2 with a 7.50 ERA in four starts since the All-Star break, and he is 1-3 with an 8.46 ERA on the road. Left-handed hitters are batting .352 off him, while right-handed hitters are batting .294. Opponents are hitting .381 with runners in scoring position, including .414 with two outs. He lost to the Red Sox, 11-3, on April 18 in Boston, then ended up on the disabled list with a sore shoulder.
Joan








