Elvis Basanovic was seen at Old Trafford yesterday.
Basanovic is the agent of RB Leipzig striker Benjamin Sesko and saw Arsenal defeat Manchester United on Sunday, says the London Evening Standard.
Sesko is being considered by Gunners chief Edu for the summer market.
Manchester United have also been linked with the striker over the past 12 months.
Sesko's RBL deal carries a 50m buyout clause.
