Miralem Pjanic opened the scoring but followed Alex Meret in receiving a red card as Juventus held out for a 2-1 win over Napoli.
Juventus struggled against Bologna on Sunday, but substitute Paulo Dybala secured the points and edged them closer to the Serie A title.
Massimiliano Allegri hopes Juventus use their next three Serie A games to prepare for a famous comeback against Atletico Madrid.
Miralem Pjanic, Federico Bernardeschi and Sami Khedira trained separately on Tuesday, but Emre Can is on the comeback trail.
Manchester United have enough quality to trouble Juventus at the Allianz Stadium, according to a wary Miralem Pjanic.
Juventus midfielder Miralem Pjanic discussed the evolution of five-time Ballon d'Or winner Cristiano Ronaldo.
Juventus star Cristiano Ronaldo's red card was "absurd", according to team-mate Miralem Pjanic.
Cristiano Ronaldo's red card made Juventus prove their team spirit in the 2-0 Champions League win over Valencia, says Leonardo Bonucci.
Miralem Pjanic scored twice from the spot to give a 10-man Juventus victory over Valencia following Cristiano Ronaldo's dismissal.
Roma striker Edin Dzeko has scored 52 goals in 94 internationals and is set to become Bosnia-Herzegovina's most capped player.