The 38-year-old moved to Italian giants Milan in the January transfer window as a free agent following his departure from Major League Soccer outfit Los Angeles Galaxy.
The former Sweden international signed a contract until the end of the season with the option of another year.
This is Ibrahimovic’s second spell at the Rossoneri, having helped them to the Serie A title back in 2011.
Leeds chairman Radrizzani has said that he spoke to Ibrahimovic before the former Manchester United striker’s return to Milan.
Radrizzani told Gianlucadimarzio.com: “I spoke more concretely with Zlatan… He could give us a decisive boost but he decided to go to Milan. He was very honest and transparent with me. Trying again for Ibrahomovic next year? Depends on the market.”
Ibrahimovic has made seven starts and one substitute appearance in Serie A for Milan since his move in January, scoring three goals and providing one assist in the process.
The Rossoneri are seventh in the Serie A table at the moment with 36 points from 26 matches.
Meanwhile, Leeds currently find themselves at the top of the Championship table with 71 points from 37 matches, a point clear of second-placed West Bromwich Albion.