"...Diaz wins a controversial split decision. Not likely but role play with me.
GSP will almost 100% certainly get a rematch. When will the rematch happen? And if someone gets injured. What the fuck will WW do?!"
Guessing it's a joke thread but I'll play along.
1. Diaz has gone to a decision 11 times in his career, only winning close to half of them (5). Meanwhile, GSP has gone to a decision 10 times and never lost one. Diaz will be coming off a 13 month layoff, if it goes to a decision it will strongly favor GSP.
2. Split decisions in favor of the challenger are not common, if there is any doubt they usually side with the champion (see Bendo vs. Henderson II).
3. Fights usually occur 4-6 months after the previous bout like any other fight.
4. If either got injured they'd probably get Hendricks/Ellenberger winner.
The end.