The Miami Dolphins are yet to decide on whether to pick up Tua Tagovailoa's fifth-year option after the quarterback's career-best, but concussion-plagued 2022 season.

Tagovailoa, who was selected with pick five in the 2020 NFL Draft, is entering the last guaranteed season of his rookie deal and has an option for $23.2million in 2024.

Dolphins head coach Mike McDaniel told reporters at the NFL scouting combine on Tuesday that no decision had been made on the 24-year-old QB's fifth-year option.

"Like any other player, you factor in every variable," McDaniel said. "I think it's important to recognize we have a congruence of interests by the Dolphins and the player, Tua, that we both want him to play at a very high level for a long time for the Miami Dolphins.

"We're probably best served to utilize the time [until the deadline]. That's kind of the way we're approaching it, but that doesn't mean that we're spending any long period of time not discussing it.

"This is something that [general manager] Chris [Grier] and I have been working through."

Tagovailoa set career highs in passing yards (3,548), passing touchdowns (25) and touchdown percentage (6.3 per cent) in the 2022 season.

He led the league for passer rating with a career-best 105.5 too, but missed several games due to two confirmed concussions.

The Dolphins have until the May 2 deadline to pick up Tagovailoa's option.