Michael Phelps answered the Ravens' call.
The most decorated Olympian of all time is at Ravens training camp Tuesday morning after cornerback Marlon Humphrey and teammates asked Phelps to teach players to swim.
Safety Kyle Hamilton reported that one-third of Ravens players cannot swim. Phelps can certainly help rectify that.
A huge Ravens fan and Baltimore native, Phelps responded to Humphrey's social media post with, "I got yall!!! Let's do it!!"
Phelps got a tour of the Ravens' new recovery pool, which was part of the team's offseason renovation project at the Under Armour Performance Center, and will watch practice.
Besides swim lessons, Phelps has a wealth of knowledge. The Ravens are hoping to get over the hump and into the Super Bowl this season. With 28 Olympic medals, including 23 golds, Phelps knows a thing or two about what it takes to become a champion.