"I want to give him a couple days just to go back to what he was," Marlins manager Ozzie Guillen said. "It's not a punishment, it's not anything. I think he needed a break, mentally and physically."
Greg Dobbs got his fifth start of the season at first base in Morrison's place.
Morrison has seen his batting average dip to .216, which is the lowest it has been since April 12, when he was hitting .188 after his fifth game of the season. Through the first week of June, Morrison is just 3-for-24. In May, he hit just .176 with 19 strikeouts.
Morrison will continue to work on his swing in the batting cages and during batting practice while working with Marlins hitting coach Eduardo Perez during the next couple of days. Guillen hopes the extra work and mental break will help Morrison return to being the same player who hit 23 homers and drove in 72 runs a year ago.
"We cannot win without LoMo hitting well," Guillen said. "He's batting fifth, protecting one of the best hitters in the game right now in the National League ... one of the most dangerous hitters [in Giancarlo Stanton], and we need his help."
While Morrison was out of the lineup, Austin Kearns, who was reinstated from the 15-day disabled list Thursday night, was back in left field. Kearns had been playing left since Gaby Sanchez was optioned to Triple-A New Orleans on May 19 and Morrison took over everyday duties at first.
Kearns was sidelined with a strained right hamstring, and Guillen said the plan is to ease him back into the lineup and not play him on consecutive days to prevent the injury from being re-aggravated.
"For sure it's not back-to-back days," Guillen said. "Last time we tried that, he was gone. ... He'll play left field a lot. You're going to see a lot of action with him."