Fatigue a factor for struggling Maurer?

Maurer gets out of a jam 0:25 7/25/15: With a runner on third base and two outs, Brandon Maurer gets Cole Gillespie to ground out to escape a jam and end the 7th inning Going into Monday's series opener against the Brewers at Miller Park, Maurer had 50 appearances -- 13 more than he had in 2014 with the Mariners when he began the season as a starter before moving to the bullpen in the second half.

Since June 25, Maurer has a 7.07 ERA, allowing 20 hits in 14 innings over 18 games. Before then, he had a 1.50 ERA with 18 hits allowed in 36 innings over 33 outings.

Could fatigue be a factor?

"I've been tired the last couple days," said Maurer, who allowed a three-run walk-off home run in the ninth…