The evergreen frontman nipped in to tap home from close range, becoming the first player to score 400 career goals in Europe's top five leagues in the process.
84 of those strikes came in the Premier League with Manchester United, a whopping 311 in LaLiga with Real Madrid and now five in Serie A for Juve. Ronaldo reaches the 400 mark in 497 games, giving him a goals to game ratio of 0.80.
Perennial rival Lionel Messi is his closest competitor on the list, having scored 389 goals in 426 games (0.91).
October 20, 2018
When the goal came it was a simple one. A Juve corner from the right was cleared as far as Joao Cancelo, who cut in from the left and tried his luck on goal.
His effort was deflected, across the face of goal where of all people the prolific Piatek, who has scored 13 goals in eight games for Genoa since his summer move, was waiting.
However, the in-form Pole expected goalkeeper Andrei Radu to deal with it and left the ball to the Romanian.
The 21-year-old failed to deal with the situation, giving ronaldo the simple task of tapping home at the far post.