According to Mortensen, the deal includes $60 million in guaranteed money.
Suh had been expected to earn one of the NFL's largest contracts this off-season. The Detroit Lions opted not to use the franchise tag on Suh, a move that would have come with a $26.9 million cap number for the 2015 season.
The deal would make Suh the highest-paid defensive player in the league, with his $114 million deal superseding Houston Texans defensive lineman J.J. Watt's six-year, $100 million deal.
The former Nebraska standout played his first five seasons in the NFL with the Detroit Lions, who selected him with the No. 2 pick in the 2010 NFL draft. Last season he recorded 8.5 sacks and 54 total tackles for a Lions defense that ranked No. 2 in the league in total defense and No. 1 against the run.
The Lions lost to the Dallas Cowboys in the wild-card round of the NFC playoffs in January.
- Will Green