The Mariners conclude their homestand on Sunday against the Pirates with a premier pitching matchup featuring two of baseball’s best young right-handers.

After missing the first couple of months of the season with inflammation in his pitching shoulder, Seattle right-hander George Kirby appears to be rounding into top form.

Randy Arozarena homered, George Kirby tossed 6 1/3 crisp innings and the Seattle Mariners shut out the punchless Pirates for the third straight game, winning 1-0 as Pittsburgh wasted another strong st