5-on-5: Can Thunder upset Spurs? Does Kawhi cover Russ or KD?

Nichols to Durant: 'Show me' (2:21)

Rachel Nichols says if Kevin Durant feels he belongs in the MVP conversation, then he needs to prove that during the Thunder's upcoming series against the Spurs. (2:21)

In a matchup worthy of the Western Conference finals, the San Antonio Spurs face the Oklahoma City Thunder in the West semis, starting Saturday.

How might Kevin Durant and Russell Westbrook lead an upset? Which would be a tougher foe for the defending champs?

Our NBA Insiders go 5-on-5 on how this series plays out.