The midfielder has made more Championship appearances than anyone else in Carlos Carvalhal's squad this season.
The 27-year-old has been a key member of Carlos Carvalhal's side this term, but has arguably gone under the radar with the likes of Gary Hooper and Fernando Forestieri grabbing many of the headlines in their promotion push. But Lees has suggested that the underrated midfielder deserves a lot of the credit for what he brings to the team.
"Kieran is just one of those players who fits into our team really well. He does a lot of work that goes unnoticed. He covers a lot of distance and is very important to the way we play," he told the Star.
"Kieran has got great awareness of what is around him and you can give him the ball in tight positions. Like a lot of players we have in the team, Kieran is really important and hopefully he can carry on playing the way he is doing."
Lee has made more appearances in the Championship than any other member of Wednesday's squad this season, having missed just two games across the entire campaign.
And his ability to hold down a place in the side arguably speaks volumes regarding how highly Carvalhal rates the former Manchester United man given that the Portuguese has utilised a rotation policy in an attempt to keep some of his key players fresh.
And he has justified the faith that his manager has shown in him, scoring five goals and contributing three assists in the league to help the side remain right in the promotion mix.