Tim Tebow is not giving up on his dream to return to the NFL as he's out to prove that he's ready to put his game face on by training hard and being in great shape.

In a video posted on YouTube, Tebow can be seen working out with Tom House who is also the person behind the exercise regimen of Tom Brady and other NFL quarterbacks, Yahoo Sports reported.

The same report added that he is also having some sessions with trainer, Ian Danney.

Tebow told KSAZ that he feels great with his exercise regimen and daily workout.

"I feel the strongest, healthiest, throwing the best I ever have. I'm just really excited about the improvement," he said.

According to USA Today, part of Tebow's intense workout is playing volleyball using a 10-pound medicine ball. Yahoo added that Tebow, in the video, appears like he is indeed a workout warrior and is in "fantastic" shape.

But the question remains. Can he still play for the NFL? Yahoo noted that he was brought back to training camp in 2013 but he suffered a cut and never received an NFL offer. Tebow's chances of coming back to the NFL are still "quite remote," the report added.

But Tebow is determined and confident that he still has a chance at an NFL comeback.

"One of my favorite quotes is, 'I don't know what my future holds, but I know who holds my future.' And in that, it gives you peace to just continue to work, go after what your heart desires and when you do that, you don't have any regrets. I think that's the best way to live life," he told Yahoo Sports.

Tebow has not really "given up on his NFL dream" even if it meant he'll be "throwing to semipro wide receivers," USA Today wrote.

Randy Moss was able to make a comeback a few years ago with the San Franciso 49ers as well as Brandon Lloyd who is also doing the same with the 49ers. In Tebow's case, however, the player is behind dozens of hopeful quarterbacks who are now growing in their own teams. Tebow is just practicing and developing skills on his own, and that's a challenge he has to overcome, Yahoo Sports observed.

Although Tebow is set to start working as an analyst for the SEC Network next month, he will gladly give up his current work for the NFL, Yahoo Sports added.

The player told USA Today that there is a clause in his contract with ESPN that allows him to return to the NFL whenever there is an opportunity.