Chelsea and Arsenal were among a raft of European clubs to post scouts on Sunday for RacingGenk's defeat to Anderlecht.
Het Laatste Nieuws says players from both clubs were of interest to watching club representatives.
Chelsea, Arsenal, Bayern Munich, Bordeaux, Genoa, Ajax, PSV, FC Twente SC Heerenveen and VVV-Venlo all had representatives at the stadium on the day.
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