According to Mauinews.com:
"Grove has spent the last few weeks recovering from a rib injury."
"'Minors,'' Grove said of the injury. ''It hurts like hell, but by the time the fight comes, I should be good. I'm getting older, I guess. I figure I have a good five solid years left in me to fight. Over the years I've matured as a person, as a fighter. Yeah, if you put someone in front of me, I'll fight them, but the UFC isn't everything to me anymore. There's more.'"
Check out Cagewriter.com for an interview with Kendall Grove. (audio)