Solano tweaked his back while working out in the weight room on Wednesday. He was scratched from the lineup that day, and the team was off on Thursday. On Friday, Nick Green made the start at second base for the Marlins against the Mets at Roger Dean Stadium.
"I feel better, but I'm going to the hospital for an MRI," Solano said. "I am feeling better every day. I want to make sure I'm OK."
Solano has been one of the Marlins' top players in Spring Training, batting .417 in 44 at-bats. The 25-year-old continues to show signs that he can become a quality everyday player. Formerly in the Cardinals' organization, Solano joined the Marlins last year, and he became the regular second baseman in the second half.
The Marlins are hopeful Solano will be playing in a couple of days.
Solano is a native of Colombia, and he participated for his country in the World Baseball Classic qualifying round last November. On the national team, he was the second baseman while Edgar Renteria was at shortstop. Renteria, a World Series hero for the Marlins in 1997, announced his retirement on Thursday.
Growing up, Renteria was Solano's favorite player.
"He is my idol," Solano said. "I try to follow him, and what he did, and play the game the same way. He had a tremendous career. He did everything."
Joe Frisaro is a reporter for MLB.com. He writes a blog, called The Fish Pond. Follow him on Twitter