Game time: 7:10 p.m.
TV/Radio: NESN, MLB Network / WEEI.
Red Sox vs. Tillman: Pedroia 6-23, Ellsbury 4-18. Nava 4-14, Salty 1-16, Ortiz 0-10, Victorino 4-11, Napoli 3-8, Drew 1-6, Middlebrooks 0-8, Carp 1-5, Gomes 0-3, Lavarnway 0-3, Bradley 0-2, McDonald 0-2, Ross 0-2.
Orioles vs. Lackey: Markakis 18-51, Roberts 12-90, Jones 9-38, Davis 11-26, Wieters 5-27, Johnson 4-20, Hardy 2-15, Casilla 1-11, Machado 6-11, McLouth 2-11, Morse 1-6, Flaherty 0-3, Urrutia 1-3, Dickerson 0-2.
Stat of the Day: Buck Showalter is 33-24 against the Red Sox as the manager of the Orioles.
Pennant race watch: The Sox have a magic number of three for the division and one for a playoff berth.
Notes: The Sox have a tough task to avoid a sweep. Tillman is 3-0 with a 1.42 ERA in three starts against the Sox this season and 4-1, 2.15 in nine career starts. The Sox batters are a collective .183 against him with a .499 OPS. ... The Sox are 6-9 against the Orioles this season, 3-5 at Fenway. Baltimore has won 28 of the last 42 meetings between the teams. ... Lackey is 3-7, 5.25 in 14 career starts against the Orioles. In three starts this season he as allowed 10 runs on 23 hits over 20.2 innings. ... The Sox have won 10 of 14 and are 11-5 in September.
Song of the Day: "Just Can't Wait" by The J. Geils Band.