Add first base to the list of problems the Marlins are dealing with during the first week of the season.
First baseman Casey Kotchman will be placed on the disabled list Friday with a strained left hamstring, manager Mike Redmond said Thursday.
Kotchman’s injury, sustained while running out a ground ball Wednesday, leaves the Marlins with a glaring lack of depth at first base.
Greg Dobbs and Austin Kearns are expected to get most of the playing time, but the Marlins also might try out backup catcher Miguel Olivo and infielder Chris Valaika.
“I don’t know if I’ve ever been around a team that had to have multiple first basemen,’’ Redmond said before Miami’s series finale against the Nationals.
“It’s kind of odd that we’re sitting here talking about, how many, two of three injured first basemen already this spring. It definitely has been a challenge.’’
Logan Morrison was the Marlins’ desired first baseman when camp opened. But his recovery from a second knee surgery in September has been slower than expected.
Kotchman was competing for the spot in camp with Joe Mahoney, who suffered a strained muscle on his side in spring training.
Mahoney could return in a week to 10 days. Morrison, who hasn’t played in a major-league game since July 28, is on the 60-day disabled list.
He is eligible to return May 30, but it could be June before he’s back, because he might need an extended rehab assignment.
“LoMo is still a ways out. He has been out a long time,’’ Redmond said.
“He didn’t have a spring training and he missed a considerable amount of time last year. We want to make sure he gets enough at-bats to where he is comfortable and he comes to the big leagues ready to go.’’
The Marlins will make a corresponding roster move Friday but whoever is brought in won’t necessarily be a first baseman.
The Marlins opened the season Monday with two starting pitchers on the disabled list, forcing Miami to call up two minor-league pitchers.
Alex Sanabia, who made 17 starts at Class AAA New Orleans last season, will start Friday night in New York against the Mets.
Jose Fernandez, who ended the 2012 season in the Class A Florida State League, will make his major-league debut Sunday.
Sanabia went 5-3 with a 3.73 ERA in 15 games (12 starts) for the Marlins in 2010 and 0-0 with a 3.27 ERA in three games (two starts) in 2011. His action last year in New Orleans was limited because of three trips to the disabled list.
“First it was a groin. Then, after the groin it was an oblique. And after the oblique, it was the shoulder, all in the same year,’’ he said.
“Now for me, it’s time to rebuild and start back up.’’