Manchester United midfielder Daley Blind is convinced by the quality of Ajax coach Frank de Boer.

De Boer has been linked with Newcastle United and Sunderland this season, but will stick with Ajax next term.

"He knows everyone in the club, from the youngest youth to the first team, Frank is very involved with each team of Ajax," said Blind, who left Ajax for United last summer.

"Anyone who has worked with him knows how passionate he is. De Boer is continuously making players and his team better.

"I've worked under him and it was a lot if fun. That he stays with Ajax is very good news."