Mariners pitcher Brandon Maurer struggled in his season debut and could not make it out of the first inning Tuesday night against the Astros.

The right-hander gave up three straight singles to begin the frame before recording his first out. Then Carlos Pena hit a two-run double before J.D. Martinez followed with an RBI single.

Maurer recorded the second out but after getting tagged for three more runs, he was pulled for Kameron Loe.

The 22-year-old ended up allowing six runs on seven hits over two-thirds of an inning. He also struck out two and walked one while taking the loss in a 16-9 defeat.

Maurer (0-2) is scheduled to pitch again on Sunday against the Rangers.