HOUSTON (AP) — Astros starter Ronel Blanco was ejected at the start of the fourth inning of a 2-1 win over the Oakland Athletics on Tuesday night after umpires found a foreign substance that first base umpire Erich Bacchus said was “the stickiest stuff I’ve felt on a glove.”

Third base umpire Laz Diaz ejected Blanco after a check of his glove before he threw a pitch in the fourth inning. The umpires, Blanco and Houston manager Joe Espada stood at the mound for a couple of minutes discussing the issue before the right-hander was ejected.

Blanco’s glove was confiscated and Bacchus ran off the field with it and took it somewhere before returning. Diaz, who was the crew chief Tuesday, said it was being sent to the commissioner’s office.

Bacchus said there was nothing on Blanco’s glove when he checked it in the middle of the first, but he discovered it when he did his second check before the fourth.