Cristiano Ronaldo became the first player to score 400 goals in Europe's top five leagues as Juventus dropped points for the first time this season following a 1-1 Serie A draw with Genoa on Saturday.
Juventus' ideal start to the season came to an end in Turin on Saturday as Genoa earned a 1-1 Serie A draw on Ivan Juric's return as coach.
Ronaldo scored 84 in the Premier League for Manchester United, 311 in La Liga for Real Madrid and he has five in Serie A for Juventus so far.
So Bonucci will line up for Juventus and, at Continassa, the Italian club's stunning new training ground close to the Allianz Stadium, he tells Telegraph Sport about that remarkable return, and his equally astonishing departure the year before, about the art of defending and about the burning desire to win the Champions League.
But Juve were made to pay for failing to convert a hatful of chances when Daniel Bessa headed in a second-half equaliser.
Genoa had to wait until the 53rd minute for their first attempt on target but Juve keeper Wojciech Szczesny tipped Krzysztof Piatek's shot around the post.
Energised, the 23-year-old should have levelled seconds later, outjumping Leonardo Bonucci but his header went wide.
Meanwhile, Roma's troubles grew with a 2-0 home defeat by lowly SPAL, who finished the game with 10 men but looked comfortable all the same.
He has not started a game for United since failing to impress during the club's last Champions League game - a poor 0-0 draw with Valencia at home. Every match has to be won on the pitch in 90 minutes.