Kell Brook back in groove with KO of Mark DeLuca Unknown 17:09 Former welterweight world champion Kell Brook relaunched his career at light middleweight by knocking out Mark DeLuca in Sheffield. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsNBA free agency: Steve Kerr explains Warriors’ decision to sign Andrew BogutCombate Americas: Mexico vs. Spain fight date, time, how to watch, live streamCallum Johnson: My dad will be looking down on me and proud that I'm carrying on without himLakers guard Rajon Rondo will not be fined for seat choice during loss to Nuggets, report saysNBA trade rumors: Knicks will explore dealing Frank Ntilikina on draft nightAlthough big fights are on the horizon, Shawn Porter knows to not look past Yordenis Ugas