Miami Dolphins quarterback Tua Tagovailoa is doubtful for Week 18 due to a hip injury he suffered earlier this month. Tagovailoa was also doubtful last week for a game against the Cleveland Browns and was eventually listed as inactive.

Tua Tagovailoa didn't play during the Dolphins' week 17 game against the Browns, leading some to wonder whether the quarterback is healthy.

Here's what we know about Tua Tagovailoa's hip injury, which is likely to keep him out of today's game vs. Cleveland Browns.