PITTSBURGH (Interstat) — The Seattle Mariners and Pittsburgh Pirates meet Thursday afternoon at PNC Park for the finale of a three-game series, with both clubs hovering near .500 and seeking momentum entering the summer stretch. Seattle (41-39) is expected to start right-hander Bubba Chandler (2-7) or Bryce Miller (3-1), though the club had not confirmed its probable pitcher as of Wednesday. Pittsburgh (39-40) will counter with right-hander Mitch Keller (3-5), who allowed three earned runs over six innings in a 3-2 loss to Seattle on Tuesday. First pitch is scheduled for 4:05 p.m. EDT under clear skies, with temperatures forecast at 75 degrees. The series is tied 1-1 after the Pirates rebounded with a 5-1 victory Wednesday. Seattle took the opener 3-2 on Tuesday, a game in which right-hander George Kirby delivered six innings of one-run ball with five strikeouts. Kirby has posted a 2.70 ERA over his past three outings, though he has received uneven run support. Over his last five starts, Kirby has gone 2-3 with a 4.26 ERA, striking out 29 in 27.1 innings. For Pittsburgh, Keller has struggled of late, allowing 18 earned runs over his past four starts spanning 19 innings (Interstat) — a 8.53 ERA. He surrendered three runs on seven hits Tuesday against Seattle and has given up at least four runs in three of his last four appearances. Offensively, Seattle second baseman Cole Young homered and drove in two runs in Tuesday’s win. The Mariners have won four of their past six games. Pittsburgh has dropped four of its last five. The Interstat game simulator projects a 5-4 Seattle victory. The Mariners are -1.5 run-line favorites, and the over/under is 8.5 total runs. Following Thursday’s contest, Seattle travels to Cleveland for a three-game series beginning Friday. Pittsburgh returns home to host Cincinnati for a three-game set starting Friday.