Tulo focused on putting together another big season

Tulo focused on putting together another big season

PHOENIX -- Troy Tulowitzki is back, focused and committed to having another strong season in 2015.

"He's always focused, there [are] some other things motivating him now, but his focus is second to none," Rockies manager Walt Weiss said. "Always has been."

While the Rockies need to keep their 30-year-old shortstop on the field -- he's played over 100 games just once over the past three seasons -- they're also looking to him to be a leader.

"He's at a point in his career where he understands the responsibility of impacting your teammates and making people around you better, and he's embracing that," Weiss said.

Tulowitzki, an All-Star in four of the last five seasons, has spent his entire nine-year career with the Rockies and is a lifetime .299 hitter.

William Boor is a reporter for MLB.com. Follow him on Twitter at @wboor. This story was not subject to the approval of Major League Baseball or its clubs.