Injured in prep school, overlooked by colleges and left undrafted, Broncos rookie linebacker Steven Johnson has made a career of fighting from behind.
This week's 53rd Man, Garrett McIntyre, went undrafted, then played in the CFL and Arena football before finally making the Jets as a 26-year-old rookie.
Overlooked, undrafted, unsung -- nothing fazes Becky Hammon. Thirteen years and a few bruises later, she's one of the league's biggest stars.
Today marks the first day NFL teams can sign rookies and undrafted free agents, so expect lots of activity. We've also got a full slate of MLB action and the WNBA returns from the All-Star Break. Here are the Games We're Watching.