De Grasse hopeful he’ll be back in top form at the world championships post-COVID

TORONTO — A month before the world track and field championships, Canada’s fastest man was winded just walking up the stairs in his home in Jacksonville, Fla.
Andre De Grasse recently returned to full practices after his second bout of COVID-19 interrupted a season that was finally looking up. 
He said he suffered symptoms such as shortness of breath. The timing was frustrating, coming just as he was finding his form after an early-season foot injury. 
“I was sleeping