Mikel Arteta’s side beat United 3-2 on Sunday thanks to Eddie Nketiah’s 90th-minute winner to go five points clear at the top of the Premier League.
Arsenal also have a game in hand over second-placed Manchester City and could extend their lead to eight points as they look to lift the title for the first time since 2004.
Legendary Premier League striker named his Team of the Week on Tuesday and included three Arsenal players – including Ukraine international Zinchenko.
The 26-year-old moved to north London this summer in a £32m deal from Pep Guardiola’s City and has impressed over his opening 15 appearances.
‘Nominally a left-back, in reality he was here, there and everywhere,’ Shearer told the Premier League website about Zinchenko’s performance against United.
‘[He] pulled the strings for Arsenal in this five-goal thriller.’
Shearer also included Gunners duo Nketiah and Bukayo Saka in his Premier League Team of the Week.
‘Arsenal are missing Gabriel Jesus less with every match,’ Shearer said about Nketiah. ‘[He] stepped up again with two goals in a massive win for the Gunners.’
Quizzed about Saka, Shearer added: ‘[It is] hard to believe he’s still only 21. Man Utd simply couldn’t handle him. [He] scored one and was unlucky not to get a second.’
Shearer crowned Arteta as his Manager of the Week and said: ‘[He] racked up another win against a big rival. His team are fearless, tactically aware and playing brilliant football.’
Arsenal return to action on Friday as they face City in the FA Cup fourth round with their next top-flight game coming against struggling Everton.
Shearer named two City players in his Team of the Week – Erling Haaland and Kevin De Bruyne – following their 3-0 victory over Wolves.