International cricketer Chris Gayle has won his defamation battle against Fairfax Media after a NSW Supreme Court jury found the publisher failed to prove reports alleging he exposed himself to a massage therapist in Sydney were true.

But Fairfax - publisher of The Sydney Morning Herald, The Age and The Canberra Times - said in a strongly-worded statement it "believes that it did not get a fair trial" and is seriously considering an appeal.

The jury of three women and one man took less than two hours to decide on Monday that Fairfax had not established a defence of truth to the reports.

The jury also found Fairfax was motivated by malice in publishing a series of reports in early 2016 alleging the West Indies player exposed himself to the masseuse in February 2015.