Pep Guardiola says he did not think Jurgen Klopp "was that type of manager" after the Liverpool boss claimed Manchester City benefited from a "two-week break" because of Covid-19.
City had an eight-day gap between games over the new year as a coronavirus outbreak caused their league match at Everton on 28 December to be postponed.
"Jurgen has to see the calendar again," Guardiola said.
Premier League leaders City visit Liverpool on Sunday (16:30 GMT).
Guardiola's side have won 13 games in a row in all competitions, while Liverpool have won just three of their past 10 matches, and have fallen to fourth in the Premier League.