Strikeforce adding more heavyweights but Kimbo isn't welcomeSteve CofieldJune 17, 2010Strikeforce is still battling the issue of depth but it is working on the problem. CEO Scott Coker confirmed last night that he's adding more heavyweights. Alistair Overeem's older brother Valentijn in on the way and so is former PRIDE big boy Sergei Kharitonov. Kharitonov split two fights against the younger Overeem, who is now the Strikeforce heavyweight champ.As far as the biggest name cut recently by the UFC, Coker says no dice on Kimbo Slice."It's the same situation as before. He's a very unique athlete," said Coker. "I have a lot of respect for what he's done. He's comes through a sport that is very demanding. That takes a lot of time and energy. Some things are better left to go on their way."Kimbo lost in the first round on Season 11 of "The Ultimate Fighter" and went 1-1 with the UFC. He was dumped after UFC 113 following a loss to Matt Mitrione.Coker also added that he's open to Bellator lightweight champ Eddie Alvarez fighting his guy Gilbert Melendez. The first hurdle that needs to be cleared is Melendez getting healthy. Coker said he's out 4-6 months with a broken hand.