Oft-injured New England tight end Rob Gronkowski, who most recently had his season ended last month due to torn knee ligaments, could end up being one of the NFL's top bargains, even considering all of the time he has missed due to health problems.

Gronkowski, who signed a new deal prior to the 2012 season that was commonly represented as the highest-ever at his position, could in fact end up averaging just over $4 million a season for the Patriots and could be gone by the 2015 season.

Gronkowski, whose health history led to him signing a team-friendly extension in the first place, has most of the money in this deal tied up from 2016-2019, which at this point he is unlikely to see.

Gronkowski is set to make $15 million alone in 2015, in the form of $5 million in salary (which is guaranteed only for injury but not for cap or production purposes), as well as a $10 million option bonus that the Patriots could opt to pick up at any point in the 2015 league year.

Numerous sources who reviewed this contract said they highly doubt New England picks up that $10 million option, which would make Gronk a free agent.