He was the Turkish league’s top scorer in the 2019-20 season with 24 goals in 34 matches.
Trabzonspor have an option to buy Sorloth from Palace for €6m, which they will presumably use.
They can then sell him on to Leipzig, who view Sorloth as a fitting replacement for Timo Werner.
Sorloth has reportedly met with representatives from Leipzig to discuss a transfer.
If the move goes ahead, it will mean Norway’s star strikers, Sorloth and Erling Braut Haaland (Borussia Dortmund), will be playing at top Bundesliga clubs.