Published Thursday, 16 February 2012
The Sunderland boss will take charge of an Irish League Select XI who face Manchester United on May 15.
The game will serve as a testimonial for United and Northern Ireland goalkeeping legend Harry Gregg.
Linfield boss David Jeffrey will pick the team to face the current Premier League Champions and O'Neill will be manager for the day.
United play their final game of the season against O'Neill's Sunderland on Sunday 13 May before making the trip to Northern Ireland.
The George Best Carryduff Manchester United Supporters Club arranged the fixture by writing to Sir Alex Ferguson.
Gregg has been one of United's best servants over the years.
He played for the club from 1957 to 1966 and was a goalkeeping coach at Old Trafford between 1978 and 1981.
Gregg, who turns 80 this year, was also a hero during the Munich air crash in 1958 and saved lives in the aftermath of the tragic accident.
Gregg also went down as one of the greats while playing for his country; he represented Northern Ireland from 1954 to 1964.