Here are the matchups:
RED SOX (21-21)
Pitching: LHP Felix Doubront (4-1, 4.09)
Pitching: LHP Brian Matusz (3-4, 5.36)
Game time: 7:05 p.m.
TV/Radio: NESN / WEEI
Red Sox vs. Matusz: Ortiz 1-10, Shoppach 2-7, Sweeney 1-7, Pedroia 2-7, Gonzalez 3-3, Aviles 0-1, Byrd 1-2, Nava 0-1, Punto 2-2, Ross 0-3, Salty 0-3.
Orioles vs. Bard: Davis 1-3, Jones 1-2, Wieters 0-1, Andino 0-1, Markakis 1-1.
Stat of the Day: The Red Sox have yet to get over .500. This is the longest into a season they have not been over .500 since 1996, when it took until Aug. 25. That team finished 85-77.
Notes: The Red Sox have won nine of 11 (outscoring the opposition 64-31) and 17 of the last 28. ... The Sox are 5.5 games behind the Orioles and tied with the Yankees for fourth place. ... Doubront is 0-0 with a 6.00 ERA on three career relief appearances against the Orioles, a total of three innings. ... Matusz is 2-1, 4.02 in six career starts against the Red Sox. ... Pedroia has reached base safely in 21 of 22 games and 37 of the 42 games this season. He also has a 20 game hit streak against the Orioles. ... Aviles is 12 of 30 with seven extra-base hits and seven RBIs in the last seven games.
Song of the Day: "Ain't No Stoppin' Us Now" by McFadden & Whitehead.