Nemanja Matic has hailed the character of Manchester United team-mate Alexis Sanchez after the forward scored on his return to Arsenal in the FA Cup on Friday night.
Sanchez opened the scoring against his former club as United won their eighth game in a row under interim manager Ole Gunnar Solskjaer to maintain his winning start.
Jesse Lingard added a second with Pierre-Emerick Aubameyang reducing the arrears, only for substitute Anthony Martial to wrap up a comfortable 3-1 victory and secure United's place in round five.
Sanchez's goal was just his fifth in a United shirt, and Matic believes the Chile international is reaping the benefits of his extraordinary work ethic.
"Alexis has great character," Matic said.
"He works every training session at 100 per cent and I'm happy for him because when you work like that, in the game, you can't play bad so he is doing very well.
"He is a great guy. I'm happy for him because he must understand he is a very important player for us."
Paul Pogba produced another dominant performance for United, which Matic believes underlines his value to the team.
"I think Paul has the ability to do everything," he added
"A box-to-box player, he helps us in the defence, he also is creative with the ball and that's why he is one of the best players in that position in the world."