Marisnick returns to Astros' lineup

Fields also ready after 2015 debut, Oberholtzer working way back to Majors

Marisnick returns to Astros' lineup

OAKLAND -- Outfielder Jake Marisnick returned to the starting lineup after missing the first two games of the Astros' series with the A's with a sore right leg.

Right-hander Josh Fields made his 2015 debut on Saturday with a scoreless inning and is good to go, and left-hander Brett Oberholtzer, projected to be the club's fourth starter, is working his way back to the Majors.

All is well in Astro World.

Marisnick passed an early-morning Sunday audition for manager A.J. Hinch and the training staff, though he will be closely monitored.

"We all agreed he looked great, and he felt great and he's back in the lineup," Hinch said. "He'll get a day off in San Diego, and we'll continue to monitor him, to be extra cautious. He's an important part of our team and one of the better players."

Fields has no restrictions moving forward, and Hinch won't hesitate to use him in a variety of situations.

"You're going to see him in the most different types of roles," Hinch said.

Oberholtzer, bothered by a series of injuries and illnesses during the spring, remains in Florida to rebuild his strength and stamina.

Hinch said Oberholtzer is in a regular starting routine in Florida and will continue that in a Minor League rehab assignment.

Rick Eymer is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.