Panthers general manager Randy Sexton on Saturday said Horton's injury doesn't require surgery. Some of his recovery will occur during the NHL's Olympic break in February, which Sexton called a "silver lining."
Horton was injured Thursday night in Florida's 2-1 loss to the New York Islanders. He was hit in the leg with a puck and had to crawl to the bench.
Horton has 17 goals and 29 assists in 51 games this season.
The Panthers play the Toronto Maple Leafs on Saturday night.