Arizona Cardinals wide receiver Larry Fitzgerald isn't quite sure as to whether Sunday's matchup against the Los Angeles Rams will be his final home game.

The Cardinals have endured one of their most trying seasons in a long time, as the team now sits at 3-11 on the year after a 40-14 loss to the Atlanta Falcons in Week 15.

So, with Fitzgerald in his 15th season with the franchise, it's only natural that speculation would continue about his possible retirement from the league.

But that's not a question that Fitzgerald can answer right now, according to Bob McManaman of the Arizona Republic.

“I have spoken with many guys who have played in the past and they say you will know when it’s time,” Fitzgerald said.

Finally, I asked Fitzgerald if he knows deep in his heart which way he is leaning. I didn’t ask him to tell me what he plans on doing, just if his gut happens to be pulling him in one direction or the other. Once again, he was as honest as ever when he answered me.

“No clue, Bobby,” he said.

Fitzgerald has 59 receptions for 645 yards and five touchdowns this season, with his overall effectiveness likely limited by Arizona's continuous struggles on offense.

There's no doubt that Fitzgerald has put together a stellar career, and he'll go down as one of the best to play the position once he does finally decide to retire.

After this week's game against the Rams, the Cardinals will finish up the season with a road trip to play the Seattle Seahawks.