Eighth seed Berrettini, who has dropped only one set in the tournament, will be aiming to win his maiden ATP Masters 1000 title against Zverev on Sunday.
"If I think about the players they could play, they have a really strong side available. Midfield, wow. Up front, all good players. They might be young but they are good.
The Grizzlies, fueled by a double-double of 18 points and 21 rebounds from Jonas Valanciunas, beat the Toronto Raptors 109-99 as the 10th-placed San Antonio Spurs fell 102-124 to the Portland Trail Blazers.