Feliz (1-1, 3.81 ERA): This will be Feliz's fifth start of the season, but his sixth appearance including a relief outing during a stretch in which he had a start skipped. ... He gave up four runs on four hits in five innings in an 8-7 loss to Toronto. ... Feliz walked a career-high six batters in that game as the Blue Jays came back from a 5-0 deficit. ... He is 1-1 with a 3.60 ERA in his starts and opponents are batting .188 against him with just four extra-base hits. ... He is 0-0 with a 6.43 ERA with five saves in seven career games vs. Baltimore, all of those in relief. ... Of the five earned runs he's allowed against the Orioles, four came on a game-tying grand slam by Corey Patterson back on July 9, 2010, in Arlington.
Arrieta (2-2, 3.52 ERA): The TCU and Plano East product is making his seventh start of the season and fourth at home. ... In his three starts at Camden Yards, he's 1-1 with a 3.72 ERA. ... Arrieta has three career starts against the Rangers and is 1-2 with a 5.51 ERA. ... His only start against Texas in 2011 was April 9, and he allowed eight runs on six hits in 3 1/3 innings with two homers and two walks. ... Righties are hitting just .183 against him this season.
Hitters: Only two Orioles batters have more than two at-bats against Feliz -- Nick Markakis (0-for-3) and Wilson Betemit (0-for-6). ... The Rangers have hit .320 off Arrieta, led by Elvis Andrus, who is 3-for-7 with two RBIs. ... Josh Hamilton is 2-for-5 and Michael Young is 0-for-7 against Arrieta.