A rematch between unified heavyweight champion Anthony Joshua and Wladimir Klitschko could take place at Cardiff’s Principality Stadium in October.
“I believe Klitschko will go ahead with the rematch so we are looking at dates,” Hearns disclosed to Mirror UK.
“Talks are ongoing over venues.
“The Principality Stadium is not really available in November because of rugby so 28 October is the option. Most of December is available but I don’t really want to go that late.
“Josh has a bit of a sore shoulder, Klitschko has had a tough fight, his face was bashed up. You have got two more weeks in May, all of June and after that they will be thinking ‘right let’s get back in camp.
“Even if you started back in camp in August, then you have September and October so end of October can work.”
Joshua’s thrilling win over Ukrainian Klitschko was watched by a post-war record crowd of 90,000 at Wembley.
Staging a rematch outdoors could be difficult in the autumn, but the 74,500-capacity Principality Stadium’s retractable roof could make it a viable option.