Kalimuendo is in the final two years of his contract with Rennes. He had a successful season in 2024-25, scoring 17 goals and providing three assists in 33 league games. Despite Rennes finishing 12th in Ligue 1, Kalimuendo was a standout player for the team.
Forest is strengthening its attack after the departure of Anthony Elanga. The team has already signed Dan Ndoye and Morgan Gibbs-White has agreed to a new deal. The signing of Kalimuendo will further boost the team's attacking lineup.