| RD3-seed01=1
| RD3-team01-player1={{flagikon|CRO|3:2|size=16px}} [[Nikola Mektić]]
| RD3-team01-player2={{flagikon|CRO|3:2|size=16px}} [[Mate Pavić]]
| RD3-score01-1='''6'''
| RD3-score01-2='''7'''
| RD3-score01-3=2
| RD3-score01-4='''7'''
| RD3-seed02=4
| RD3-team02-player1={{flagikon|ESP|3:2|size=16px}} [[Marcel Granollers]]
| RD3-team02-player2={{flagikon|ARG|3:2|size=16px}} [[Horacio Zeballos]]
| RD3-score02-1=4
| RD3-score02-2=6
| RD3-score02-3='''6'''
| RD3-score02-4=5
}}
=== Damedouble ===
{{Uddybende|Wimbledon-mesterskabet i damedouble 2021}}
{{8TeamBracket-Compact-Tennis3-double
| team-width=165
Sport