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PEORIA, Arizona (AP) — Forget the batter's box, pitching mound or anywhere else between the chalk lines of a baseball field.

According to Seattle Mariners manager Scott Servais, the location of one of the biggest obstacles blocking a player from consistently excelling isn't on the diamond.

"A lot of it with that last hurdle is between your ears," Servais said at the Peoria Sports Complex.

Servais believes starting pitcher James Paxton cleared that bar last season, and the Mariners are expecting the 28-year-old left-hander to be a major contributor in 2017 for a team that looks to end Major League Baseball's longest current postseason drought.

"He is one of the guys ready to take the next step and be a real anchor in our rotation," Servais said.

Paxton is preparing to improve on his 6-7 record and 3.79 earned run average of 2016. He enters spring training locked into a spot in the starting rotation. That puts him in a different position than in a year ago, when he was battling for a spot.