Cooney had that left hook, but Tim's ability to take a punch would help him, and in addition, his strength and power would take him either to a late stoppage, or strong decision win unanimously.
From a May 17, 1983 article: Witherspoon also sparred with Page, Trevor Berbick, Eddie Mustafa Muhammad, Michael Spinks and even went to Rahway (N.J.) Prison to work with James Scott. But his best-known sparring sessions were with Gerry Cooney two years ago when, according to Cooney's people, he quit after three days. However neutral observers such as Don Turner, a trainer, who saw the workouts at the Concord Hotel in the Catskills, agree with Witherspoon's version. "They ran me out because I was getting to him," Witherspoon said. "Even with Cooney using 16-oz gloves and Timmy wearing 16-ounce gloves," Robinson added. "He really couldn't do anything with me," Witherspoon said.
cooney had a very good jab, great hook and very good right hand and was very fast. but tim was a complete boxer with one punch ko power too. I'd go with tim
Spoon gets through a good few rough rounds .At times it looks as if Cooney is on his way to winning .Cooneys landing the More damaging lookin punchers and Spoons soaking em up .But mid way through Tims coming back and suddenly his opponents lookin he's thrown his Best. Gerry starts getting tagged more as his face tells the story. But Gerry hangs on in there until almost the last round ,where Tim cut's loose and hammers him on the rope's .Cooneys leg's finally betray him and goes crashing down .A brave attempt to rise just has him falling through the rope's .Witherspoon claims that it's the hardest fight of his life .