Matchup: Nick Tepesch vs. Hisashi Iwakuma

The Rangers go for the sweep in Seattle when rookie right-hander Nick Tepesch opposes Mariners right-hander Hishasi Iwakuma on Sunday afternoon at 3:10 p.m. on Fox Sports Southwest and ESPN-FM 103.3 and 1540-AM.

Tepesch (3-4, 3.98): Tepesch was scratched from his start Wednesday against Oakland because of a blister on his right middle finger ... His last start came in a 2-1 loss to Detroit ... Tepesch had a stretch in April of 20 1/3 innings without a walk ... The Rangers are 4-4 in his starts ... He has scuffled in May with a 1-3 record and 5.40 ERA for the month ... Still Tepesch is second among American League rookies with three wins, trailing only teammate Justin Grimm, who has four wins ... Tepesch is third in the AL with 31 strikeouts ... He has received two runs-or-less of run support in five of his eight starts ... Tepesch has faced the Mariners twice already, going 0-1 with a 4.91 ERA ... he made his second big league start against Seattle on April 14 in Safeco Field, taking the loss despite taking a lead into the sixth inning ... He allowed four runs in 5 2/3 innings.

Iwakuma (5-1, 2.37): Iwakuma tries to end the Mariners' eight-game losing streak ... The 32-year-old right-hander makes his 11th start this season and 27th of his major league career ... Iwakuma is fourth in the American League with a 2.37 ERA and a .194 opponent batting average ... He leads the AL with a 0.87 whip ... Iwakuma had a rough time in his last start against Cleveland, allowing five earned runs in six innings ... He had allowed only 12 earned runs in first nine starts ... He earned his fifth win May 15 at New York Yankees ... Iwakuma is 2-2 with a save and a 4.33 ERA against the Rangers.

Hitters: Mariners third baseman Kyle Seager has three hits in four at-bats against Tepesch. Rangers left fielder David Murphy has 5 hits in 12 at-bats with a home run and three RBIs.