Michael Phelps is both the owner of 23 Olympic swimming gold medals and a Baltimore native and big Ravens fan, so he's the man some Ravens players appealed to when they wanted to learn to swim.

While the Ravens gear up for their preseason opener next week, some players are taking to the new recovery pool at The Castle. But there appears to be a little problem, and some players are calling on a local legend for help.

The Baltimore Ravens called, and Michael Phelps answered. In an amusing video posted to social media on Tuesday, Ravens cornerback Marlon Humphrey, offensive tackle Ronnie Stanley, safety Kyle Hamilton and tight end Charlie Kolar were each standing in the team's pool single file diving side-to-side to reveal the next player in line.