Rain wreaked havoc on Day 10 in Paris, creating a blockbuster Day 11 schedule.
The World No.12 did not suffer any damage to ligaments or tendons in his ankle.
"It’s tough kind of living on a razor’s edge on the top,” Agassi said.
The 31-year-old had successful surgery and will begin rehab in six to eight weeks.
If ratified, all singles matches will be played as best-of-three sets, rather than best-of-five sets.
The self-appointed commissioner of tennis has some harsh critique for Margaret Court.
The former doubles partners and Grand Slam champions are no longer on speaking terms.
