PHILADELPHIA (973espn.com) — Alshon Jeffery signed a one-year, prove-it deal with the Eagles in the offseason and the veteran receiver has stated his case well.

So much so that the Eagles and the former Pro Bowl selection in Chicago agreed to a four-year extension that could net Jeffery as much as $52 million through the 2021 season.

"Alshon has been a tremendous addition to this organization on and off the field," the Eagles said in a team statement. "We place a priority on making sure we are able to build the team around quality players like Alshon who embrace this team and this city the way he has. We are excited about his future here."

After a somewhat slow start, Jeffery, who is receiving $27 million of guaranteed money on the deal, has broken out over the previous three games -- all 28-point blowouts against Denver, Dallas and Chicago -- amassing 15 receptions for 203 and four touchdowns over that span.

For the season, Jeffery has been the Eagles' top receiver as expected, hauling in 43 passes for 619 yards and seven TDs. Only tight end Zach Ertz has caught more Carson Wentz passes this season.

“First of all I just want to thank Jeffrey Lurie and the entire Eagles organization," Jeffery said. "Like I said the other day, I love it here. I’m blessed to have the opportunity to play for this organization and for these fans. Everyone has welcomed me with open arms and now I’m looking forward to being here for a long time. We have a great group here and I’m excited to be a part of it.”

Originally selected by the Bears in the second round of the 2012 NFL Draft, Jeffery has amassed 347 receptions for 5,168 yards (14.9 average) and 33 touchdowns in 74 career games with two 1,000-yard seasons in Chicago (2013 and 2014).

-John McMullen is a national football columnist for Extra Points Media and 973espn.com. You can reach him at jmcmullen44@gmail.com or on Twitter @JFMcMullen