Wheeler said his first red flag was information he received from the fitness wearable that both he and Paul Stastny wear - an Oura ring.
"He's trying to get as physically fit as I am, which he's not quite there yet," Wheeler grinned. "I woke up Monday morning and we checked that out and that was kind of like a big red flag. So, that was actually really cool to kind of monitor that throughout the depths of it and just kind of where my body was at and it was a really useful tool as well, on the way back, kind of knowing when I was back to somewhat 100 per cent."
The information from his ring showed his body temperature increasing as well as his heart rate.
The Jets captain started to feel symptoms and then tested positive for COVID-19 and began to immediately isolate from the team.
Looking back on it, Wheeler said he was "down and out" for the first couple days, then gradually started to feel better.
After three days in the team hotel, he was able to safely go to his parents' place to isolate in the basement. He was grateful that his parents were able to handle the necessities while he worked on getting better.
If there was any luck in all of this, it was that it happened in Minnesota. Although he admits it's been a while since he's spent that much time at his parents place during the hockey season.
"When I was like in high school. So, 17 (years old)," he said. "It was a lucky bounce, for sure, to just have people to cook and just all the little things that can be tough when you're not feeling 100 per cent."
As far as his road back to the line-up, the ball is in Wheeler's court, Maurice says. Throughout Wheeler's recovery, the Jets head coach has compared the timeline for a return to concussion protocol.
There is no rushing it and the player needs to hit certain benchmarks to clear the way for a safe return to play.
"What we're going to do is see how he feels tomorrow, go a little heavier tomorrow, see how he feels the next day, and just ramp up from there," Maurice said. "All of this will be Blake. We're going to watch him in practice and make sure we're seeing the same things, but he'll tell us when he's ready."