The 21-year-old has already made 132 appearances for the Jupiler Pro League side, scoring 20 goals. He has also made his debut for Belgium, showing how talented the youngster is seen to be by those who should be in the know.
As such it would be a major coup for the Baggies if they were able to sign the midfielder, especially with the Gunners also interested. RSCA will demand at least £11 million for the playmaker though, which is steep for a player who is both so young and untested in English football.
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Arsene Wenger is thought to be waiting to see how Tony Pulis does in his attempts to sign the player before deciding whether to make a move. However, with attacking midfield well catered for at the Emirates Stadium it may not be the smartest move to strengthen the position when others are in more need. Mesut Ozil, Alex Oxlade-Chamberlain, Santi Cazorla, Alexis Sanchez, and Tomas Rosicky can all play in the position for the North Londoners at the moment.