Manchester United declined to comment at this time but a statement from Greater Manchester Police said: "A 44-year-old man has been arrested on suspicion of assault and remains in custody for questioning".
It's alleged that Scholes placed 140 bets on football matches, contrary to FA Rule E8, between 17 August 2015 and 12 January 2019.
The married ex-midfielder, who is head of coaching at the Manchester United youth academy, was later released pending further inquiries.
There were no details last night on the identity of the woman who was allegedly assaulted, but police said she suffered a small cut to her hand and did not require hospital treatment.
The ex-England star was in custody Tuesday night after police were called to a house in Altrincham, Greater Manchester, just hours before United took on Barcelona in Spain.
Nicky Butt has been arrested according to widespread media reports on Tuesday night.
Butt won a string of Premier League titles in his playing career at Old Trafford and also played in the club's dramatic last-gasp 2-1 victory over Bayern Munich in the 1999 Uefa Champions League final.
"A 44-year-old was arrested on suspicion of assault and has been bailed pending further inquiries". He has been involved in various backroom and coaching roles with the club since 2012.