Patrice Evra has revealed Robin van Persie was shocked by the difference in work ethic between Manchester United and Arsenal when he joined the Red Devils in 2012.
The Dutch striker made the controversial move to leave Arsenal after going seven years without winning a trophy, and opted to join their title rivals at Old Trafford.
At the time, Arsenal were trying to keep pace with both Manchester clubs, but Evra has claimed Van Persie noticed one major issue holding the Gunners back straight away.
Speaking about Van Persie's first impressions of United, Evra told the Vibe with Five YouTube channel: 'Robin, he'd say: "Patrice, I've never seen people so professional.