McEnroe expressed shock in Djokovic's effort in set three of his quarterfinal loss to Dominic Thiem and said it looked like "tank city" to him.
The fueding Frenchwoman may see relations start to thaw from here.
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.
