Wolves boss Nuno is being monitored by Manchester United's board.
BILD says Nuno has impressed the Old Trafford bosses and could be in line to succeed Jose Mourinho.
He is being considered by United alongside former Real Madrid manager Zinedine Zidane.
Nuno took the reins at Molineux last summer and led the West Midlands back to the Premier League after a six-year absence at his first attempt.
The club attained 99 points, leading the way from October, and were nine clear of second-placed Cardiff at the end of the season.