Klitschko v. Briggs, super Vernon Davis, bitter Sherman

2:09 | NFL
Klitschko v. Briggs, super Vernon Davis, bitter Sherman
On Thursday's SI Now, host Maggie Gray discusses the hottest trends in sports including two-time heavyweight champion Shannon Briggs talks smack to Wladimir Klitschko, Vernon Davis is a superhero, and Richard Sherman is still talking trash.
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