 Their biggest signing of the summer, Wellens was named by the BBC Sport as the club's key player for the 2009–10 season.He made his debut in a 2–1 win over Swansea City on 8 August 2009, scoring his first goal in a 2–0 win over Middlesbrough on 2 May 2010.Wellens featured in all but three matches for Leicester in The Championship that season.