Gulbis fell several times.He must have cleats of some sort.
The Center court is starting to wear down along the baseline.
Don't know how Fed can handle the grass without orange shoe bottoms.
Cleats are allowed I believe.
From the pics, today's grass shoes seem to have pips similar to an pips-out table tennis bat. In days past, actual cleats were worn.
I expect we'll here more from the players and the tourney admin re: this issue as the tourney progresses. Perhaps it is a conspiracy to ease the path to the final for Muzza......