Marlon Humphrey and other Ravens want to learn how to swim. Luckily for them, they landed the best teacher available: Michael Phelps.

Michael Phelps may not be able to help his hometown NFL team on the field, but he plans to give them a hand in the pool. The 23-time Olympic gold medalist and Baltimore native has offered to help Ravens players learn how to swim at the team's new aquatics center.

Cornerback Marlon Humphrey posted a video on social media asking 23-time Olympic swimming champion Michael Phelps — a Baltimore native — for swimming lessons. The video includes Humphrey, tackle Ronnie Stanley, safety Kyle Hamilton and tight end Charlie Kolar standing in the pool.