By Greg Johns

Second baseman Robinson Cano left the Mariners camp on Sunday for personal reasons and manager Lloyd McClendon said he wasn’t sure on the timetable for the return of the six-time All-Star.

“His grandfather passed away and I’m not sure when he’s coming back,” McClendon said.

Cano flew home to the Dominican Republic after learning of his grandfather’s death on Saturday.

Cano has played in two Cactus League games this spring, going 2-for-5 with a double and two runs scored.

Willie Bloomquist, originally slated to play first base in Sunday’s game against the Reds at Goodyear, instead will shift to second base to take Cano’s spot and rookie D.J. Peterson gets the start at first base.

In other Sunday news from Mariners camp:

— Outfielder Franklin Gutierrez was taken out of Saturday’s split squad game in Glendale after three innings and will be sidelined for several days with tightness in his right groin muscle. Gutierrez is attempting to come back after sitting out all of 2014 to deal with health issues and has gone 0-for-5 in his first two outings.

“That’s to be expected,” McClendon said of Gutierrez having soreness after playing back-to-back games. “He’s been off almost two years. This is a grind down here. We’ll give him a couple days off and try to get him back out there.”

— Left-hander Danny Hultzen is scheduled to pitch an inning in relief on Wednesday against against the Rockies in Peoria in what will be his first real game action since undergoing shoulder surgery in 2013.

— The Mariners have announced that Opening Day on April 6 against the Angels at Safeco Field is already a virtual sellout, with only some scattered single tickets remaining.

— J.A. Happ makes his Mariners debut in today’s 1:05 p.m. PT game against the Reds at Goodyear, while closer Fernando Rodney also is slated for his first appearance of the spring. Also pitching in relief will be Yoervis Medina, Joe Saunders, Danny Farquhar, Charlie Furbush, Lucas Luetge and Mayckol Guaipe.

The game is a radio only broadcast in the Seattle area. Here are the full lineups: