Bargain move
At £1million, Whelan would prove to be a bargain move as he continues to be one of the underrated holding midfielders of the Premier League.
His form has even seen Whelan displace record signing Gianelli Imbula this season, starting alongside the likes of USA international Geoff Cameron in the middle of the park.
Dropping down a division to join the Elland Road club would allow Christiansen to play the style of football he wants to, for a knockdown price that could see Leeds haggle to have a lower price accepted.