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On any given day here at his company's Silicon Valley headquarters, Vivek Ranadive is ready to compete against any employee who wants to challenge him to any contest.

Once, the TIBCO Software chairman and new owner of the Sacramento Kings did 150 pushups to beat out a co-worker who thought he could do more. Another time, it was two-dozen pull-ups — holding his chin above the bar on the final repetition just to gloat.

Spend a little time around Ranadive, and that competitive spirit — the same one that convinced the NBA to allow him to buy the Kings instead of sell to a group that wanted to move them to Seattle last May — is impossible to ignore.

It's how he built his software empire, and it's how he plans to shake up Sacramento's only major professional sports franchise.