Floyd was flying to San Diego on Monday, coach Norv Turner said.
"They wanted to do some tests on him," Turner said. "Things look good and it'll be day to day in terms of where he is at the end of the week and if he'd be available for the game."
Floyd caught a 4-yard touchdown pass from Philip Rivers with 1:13 left in the game. After the Chargers recovered an onside kick, Rivers threw a 10-yard scoring pass to Vincent Jackson with 36 seconds to go to give the Chargers a 22-21 victory.
Floyd had five catches for 67 yards.
San Diego (6-8) remained mathematically alive in the AFC West race. The Chargers are two games behind Denver with two to play. San Diego visits Tampa Bay on Sunday before finishing the season with a home game against the Broncos.
Center Nick Hardwick, knocked out of Sunday's game with a concussion, underwent tests Monday.
"He felt good," Turner said. "Again, we know with the head injuries we'll be super careful. Everything was very positive in terms of where he is right now."