Sky Sports says United's on-loan forward Ighalo has been tempted by his parent club Shanghai Shenhua with a new £400,000 deal to extend his contract by two more years.
United are ready to sign him for £15million this summer when his loan deal expires on May 31.
But Shenhua are hopeful of swaying the 30-year-old with an eye watering package to keep him in the Chinese Super League.
United's deal with the Chinese side ends a month earlier than most loan deals, and the club may have agree an extension if the Premier League season continues on through the summer due to the coronavirus.
This could see him stay with United until June 30, with players' union FIFPro working on a solution to contract uncertainty amid the football shutdown.