Gonzalo Higuain scored twice as dominating leaders Juventus set a new Serie A record of 26 consecutive home wins with a routine victory over Bologna in Turin.
The Argentine put Juve ahead with a sublime volley from Miralem Pjanic’s overhead pass.
Paulo Dybala doubled their lead from the spot shortly before half-time, after Bologna’s Marios Oikonomou clumsily brought down an attacking Stefano Sturaro.
Higuain completed his brace by nodding in Stephan Lichtsteiner’s right-wing cross in after the break.
Juve moved four points clear of second-placed Roma who defeated Genoa earlier in the day.
The Old Lady, who are aiming for a record sixth straight Scudetto, also have a game in hand on AS Roma, and can extend the lead to 7 points, should they win.
Higuain has now recorded seven goals in his past six games, which also increased his tally for Juve to 16 goals in all competitions this season.