Edmonton Oilers defenseman Darnell Nurse won't be participating in the club's upcoming training camp without some financial security.

Nurse, the only Oilers player currently without a contract, recently said he's optimistic a deal will get done before camp opens in mid-September, but he confirmed Wednesday he won't be attending if he remains a restricted free agent.

"No, I wouldn't come to camp without a contract, but hopefully we get something done before camp so I can be out there (on the) first day. That's the goal," Nurse told reporters, via Sportsnet.

Nurse is coming off the final year of his entry-level contract and is one of three prominent RFA defenseman across the league in need of a new deal, along with Shea Theodore of the Vegas Golden Knights and Josh Morrissey of the Winnipeg Jets.

The Oilers have just under $4 million available in cap space to work out a new pact with Nurse, per Cap Friendly. The 23-year-old is coming off his most productive season at the NHL level, suiting up in all 82 games while registering 26 points and logging over 22 minutes per contest.