JACKSONVILLE, Fla. -- Jaguars defensive lineman Larry Smith collapsed during practice Sunday but was recovering in a Jacksonville hospital.

The 6-foot-5, 310-pound Smith fell while the team was taking a water break during the morning practice. The temperature was 87 degrees around the time Smith collapsed, and with the humidity factored in, it felt like 95 degrees, according to National Weather Service data.

Team spokesman Dan Edwards said Smith, a fifth-year player, would be kept in the hospital overnight for observation. He said Smith was listed as being in good condition.

"He went to the hospital to have tests done," coach Jack Del Rio said. "He had an episode of heat. He went down, got dizzy. It's a serious issue and we're taking it seriously, but he appears to be doing fine."

Smith will not practice Monday, the team said. He is expected to return within a few days.

Like most teams around the NFL, the Jaguars advise their players on dealing with heat and dehydration. They have had relatively few heat-related episodes in their history despite training in one of the hottest locales in the league.

Smith went down once, then got back up, but fell again. Jaguars trainers rushed onto the field and took him off on a cart.

"It was a scary moment to see someone fall like that and not know what's going on," wide receiver J.J. Stokes said.

Smith's collapse came the day after the widow of late Minnesota Vikings lineman Korey Stringer said she would sue the NFL, alleging the league's policies led to Stringer's heatstroke death two years ago.