So, if you are looking for a hefty dose of inspiration, there is no better place to start than with some of the best David ...

Amid his three-fight losing slump, former two-time UFC Middleweight champion Israel Adesanya has recently been seen training with David Goggins.

Paul Felder sees David Goggins having a positive impact on Israel ... a guy who maybe slips off and loses discipline," Felder said. "And Izzy maybe is having the same issues where he just needs ...