Manchester United scouts are being shadowed by Manchester City representatives in France.
Both on Sunday and last night, both Manchester clubs had scouts in the stands to see PSG midfielder Marco Verratti, 20, in action against Olympique Marseille.
Also on City's radar was Marseille defender Nicolas Nkoulou, 22, who attracted an approach from the Premier League champs in January, which was rebuffed by l'OM.