BAL: Jeremy Guthrie, RHP, 0-1, 4.38 ERA
SEA: Felix Hernendez, 2-0, 1.47 ERA
Orioles: Guthrie has worked to three straight no-decisions, and he's been bailed out of losses by a pair of late Baltimore comebacks. The right-hander worked into the seventh inning for his third straight start his last time out. Guthrie allowed two home runs in his last start and has allowed five this year, the second-highest total in the league.
Mariners: The 22-year-old right-hander became the first starter to pitch a complete game, throwing 115 pitches in a victory over the Athletics. He threw first-pitch strikes with his fastball and retired 13 of 14 batters he faced from the second through sixth innings. His two-seamer has been his bread-and-butter pitch this season.
BAL: Daniel Cabrera, RHP, 1-0, 5.16 ERA
SEA: Carlos Silva, RHP, 2-0, 2.79 ERA
Orioles: Cabrera has pitched to contact much better in his past two starts, allowing hitters to put his heavy fastball in play. The right-hander has also streamlined his delivery and added a slider to complement his curveball and changeup. Cabrera has pitched into the seventh inning in each of his past two starts, winning one and taking a no-decision.
Mariners: The veteran right-hander has been everything the Mariners had hoped for when they signed him to a lucrative multiyear contract during the offseason. He has won his first three decisions and looked especially sharp in his last start, holding the Athletics to four hits and one run over seven innings. He has worked at least seven full innings in all four of his starts this season.
BAL: Adam Loewan, LHP, 0-1, 6.23 ERA
SEA: TBA (Erik Bedard's Spot)
Orioles: Loewen allowed a three-run home run in the first inning of his last start but calmed down to throw five scoreless innings after that. The southpaw has made it through six innings just once in three starts and has walked more batters (12) than he's struck out (11). Loewen made just six starts before an injury wiped out his 2007 season.