FRISCO, Texas -- Five games into the season, DeMarcus Lawrence has a career-high 8.5 sacks, which leads the NFL.

He's picked the right time to have his best season, considering he is to be a free agent in 2018, but he is not worried about contract talks at the moment.

"We'll talk about that when the time comes," Lawrence said. "I ain't in no rush. I'll just keep racking up my numbers and we just have to get the job done as a team. If the team wins, we all win. That's the main thing."

Lawrence is looking at potentially being one of the most sought-after free agents on the open market. He doesn't turn 26 until next April, however, he has had two back surgeries in the past two years. The Cowboys could put the franchise or transition tag on him to keep him off the market next March. They have a history of re-signing their own players before they can test free agency, but as of now there have not been meaningful discussions.

"I'd love to be a Cowboy for the rest of my life," Lawrence said. "Like I said, that contract talk, I ain't worried about that. I'm worried about getting my job done and making sure we come out with the W."

Lawrence had eight sacks in 2015. He had just one sack in nine games last season because of a four-game suspension to start the season and a back that required another surgery. He is healthy now and the proof is in his production.

He is looking at becoming the first Cowboys pass-rusher with double-digit sacks since Jason Hatcher had 11 in 2013. Hatcher left the Cowboys for a free-agent deal with the Washington Redskins after that season.

"Nothing changes at all," Lawrence said of his expectations. "It's still the same tempo, same mindset. You just can't want to be great for five games. You've got to want to be great for the rest of your life. That's what coach preaches. We can be a helluva defense and a helluva D-line, but it's not just one of us. It's on all of us. I know I'm not going to let my guys down, trying to be selfish or going out thinking sacks."