Why wasn't Hendo/Evans 5 rounds?

Simple question...

I thought all PPV main events were 5 rounds?

Yes, it was a very lackluster fight, but I would have liked to see 2 more rounds personally... Phone Post

Fight was moved to main event on short notice after contracts were signed Phone Post

Hendo would have died due to exhaustion

Was supposed to be 3 until card changed. Fighters training for 3 rds instead of 5

Aghh gotcha. Thanks Phone Post

LOL@ Hendo fighting 5 rounds