Berrettini is the second player in two days to pull out with the virus after Marin Cilic.
Berrettini becomes second player to test positive Nadal due on Centre Court at about 3pm against Argentina's Cerundolo Williams the last match on Centre on day two, following the Spaniard GB's Peniston faces Laaksonen on Court 12; Jubb faces Kyrgios on Court 3
The Brazilian is reported to have been discussing a collision between Hamilton and Max Verstappen at the 2021 British Grand Prix.
After beating James Duckworth, two-time champion Andy Murray said he feels the underarm serve is a smart tactical play.