Fritz recorded eight aces and returned three out of four break points in the tie. His win percentages on the first and second serves were 56% and 62% respectively.
The Italian tennis player hit eight aces and returned three out of five break points, and his win percentages on the first and second serves were 85% and 68% respectively.
Alcaraz registered three aces and returned four out of five break points to register a 6-0, 7-6 (7-5) victory on Sunday.
Alcaraz easily defeated a foe who was seeking his first Top 10 victory and who never really settled into the second-round match on Hard Rock Stadium.
Rublev hit a whopping 16 aces in the match and did not commit a single double fault. His win percentage on the first and second serves were 69% and 67% respectively.
Lehecka won easily in 63 minutes thanks to his strong groundstrokes and willingness to attack whenever he could.
The 2019 Monte-Carlo semifinalist defeated Murray in their first career meeting to earn his first victory on a hard court this year.
The 19-year-old Spaniard, who went undefeated in six matches at Indian Wells, will reclaim the top spot in the world in Monday's ATP Rankings.
Norrie emerged victorious over the Russian on Tuesday thanks to a dominant performance which saw him advance to the last eight.
Frances Tiafoe is the most prominent participant on the entry list, and he will be joined by fellow countrymen Tommy Paul, John Isner, J.J. Wolf, Brandon Nakashima, Marcos Giron, a...