DETROIT, MI - DECEMBER 14: Ndamukong Suh #90 of the Detroit Lions participates in pre game warm ups prior to the game against the Minnesota Vikings at Ford Field on December 14, 2014 in Detroit, Michigan. (Photo by Gregory Shamus/Getty Images) Ndamukong Suh #90 of the Detroit Lions (Photo by Gregory Shamus/Getty Images) FILE PHOTO

An interesting billboard about Detroit Lions’ Ndamukong Suh is popping up along freeways in the area.

It simply says: $UH?

Billboards in metro Detroit question financial contract issue between NFL Lions and tackle Ndamukong Suh. @WWJ950 pic.twitter.com/tC1WCSIV7w — Mike Campbell (@reportermikec) March 4, 2015

It’s not clear who paid for the billboards, which have been seen in several spots in the metro Detroit area.

The Detroit Lions announced Monday that they’re not using the franchise tag on All-Pro defensive tackle Ndamukong Suh, who is set to become a free agent March 10.

Suh has been a force in the middle of Detroit’s defensive line ever since the Lions drafted him with the second overall pick in 2010. He has 36 sacks in five seasons, including 8 1/2 in 2014, when the Lions made the playoffs as a wild card while boasting one of the league’s top defenses.

Suh has been hit with several fines in his career for his aggressive on-field actions, and he was nearly suspended for Detroit’s playoff game at Dallas last season — a one-game ban for stepping on Green Bay quarterback Aaron Rodgers was overturned on appeal. But that occasional drama has done little to detract from Suh’s overall value to the Lions, who now face the prospect of having to bid against other teams for the 28-year-old All-Pro’s services.

Detroit has become competitive again recently because of Suh, quarterback Matthew Stafford and wide receiver Calvin Johnson — all of whom came to the Lions via high draft picks. That trio helped Detroit reach the postseason twice in the last four years.

The Lions were able to secure Stafford and Johnson on long-term deals beyond their rookie contracts, but so far they’ve been unable to sign Suh. It’s been obvious all along that Suh’s status would shape the rest of Detroit’s offseason, in terms of the team’s free agent needs and perhaps its approach to the draft.

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