For those involved in European competitions, the matches are starting to come thick and fast in Serie A. And perhaps for some, it's starting to take its toll.
Lautaro Martinez broke a record in becoming the first ever player to score four goals in a game coming off the substitute's bench, as Inter maintained their good form to remain top of the table.
Meanwhile, Romelu Lukaku continues to prove vital for Jose Mourinho's Roma, who are slowly climbing the table after their difficult start to the season.
Juventus are just about in the Champions League places despite their 0-0 draw with Atalanta on Sunday, with their opponents dominating the game but failing to secure three points.