Martin Mayhew, the Lions' general manager, remains confident that a deal will get done after the season.
Suh is entering the final year of his rookie contract and has a salary cap hit of $22.4 million this season. On Sunday, new head coach Jim Caldwell said he was optimistic the Lions would be able to re-sign Suh to a long-term deal.
Mayhew said it was the team's decision to table the talks, and Lewand said that while the timing of the deal has changed, he's still optimistic it gets done.
Neither Mayhew nor Lewand ruled out using the franchise tag on Suh to retain him for 2015. The one-year tag would cost $26.7 million, or the team could let the 27-year-old become a free agent.
Suh had 48 tackles and 5.5 sacks in 16 starts for Detroit last season.
GALLERY: SUH'S CONTROVERSIAL MOMENTS
Ndamukong Suh's Controversial Moments
- Molly Geary