In the weeks that have followed Super Bowl LII, there has been much mystery as to what New England Patriots All-Pro tight end Rob Gronkowski's future in the NFL. He has yet to fully declare if he will be back in the fold for the 2018 season.

However, Gronkowski has laid a few minor hints that he may be on deck to continue playing for at least another year. According to Ben Volin of the Boston Globe, Patriots owner Robert Kraft has indicated that the 28-year-old has been seen at the team practice facility a few weeks ago.

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This may not be a clear indication that he Gronkowski will be back, but it's a sign that he is keeping himself in playing shape. At the same time, there hasn't been anything to suggest that he would be leaning toward retiring aside from his initial comments that he was going to take a few weeks after the Super Bowl to contemplate his future plans.

What could also be factoring into the equation is that Gronkowski is still under contract through the 2019 season, as he still has two years left on his six-year, $54 million extension with $19 million left in both base salary and bonuses. It would be a significant amount of money that he would be stepping away from in the prime of his career.

Gronkowski had also begun to show that he was past his injury past after putting together a productive campaign where he led the team with 69 receptions, 1,084 receiving yards, and eight touchdowns that earned him a Pro Bowl selection and a First-Team All-Pro nod. He is still playing some of the best football of his career that could see him continue to produce at an elite level over the next several seasons. With the start of training camp still a few months away, Gronkowski still has plenty of time to decide whether he is fully committed to continuing his NFL career.