Cammalleri's second career stint with the Kings lasted just 15 games. After signing a $1 million, one-year deal last summer to return to the club that drafted him in 2001, Cammalleri, 35, found himself stuck in a depth role early in the season, even sitting as a scratch for two games.
Cammalleri has three goals and four assists this season, his 15th NHL campaign. He has scored at least 19 goals in nine of those seasons.
"I don't think he enjoyed the role that he was in, by any means," said Kings general manager Rob Blake, who declined to say whether Cammalleri requested a trade. "I won't tell you a lot about our conversation, but what I will tell you is, we came to the conclusion that it wasn't going the direction he wanted it to."
Jokinen, 34, has one assist in 14 games with Edmonton this season after signing a one-year deal as a free agent in July. The Kings, who'll be his seventh NHL franchise, expect to use him as a depth forward with faceoff skills and a solid two-way game.
"He's been a very reliable player over his career, and I think that will bring a little stability to our lineup," Blake said. "He can do a lot of different things for us."
The Pacific Division-leading Kings are off to a strong start despite the injury absences of goal-scoring veteran Marian Gaborik and top scorer Jeff Carter, who will be out for several months while recovering from a cut on his leg.
Captain Anze Kopitar and Dustin Brown are enjoying remarkable bounce-back offensive seasons while skating on Los Angeles' top line along with speedy rookie Alex Iafallo, who surprised the team by winning an NHL roster spot in training camp and keeping it with steady play. Iafallo's emergence contributed directly to Cammalleri's reduced role, Blake said.
Iafallo and fellow youngster Adrian Kempe have secured regular roles while the Kings are off to one of the Western Conference's best starts even without Carter and Gaborik, who is back in practice during his recovery from a knee injury. Blake said he is hopeful Gaborik will return to the Los Angeles lineup by early December.
Cammalleri is returning to Alberta after two earlier stints with the Calgary Flames. He spent the past three seasons with New Jersey.
Jokinen spent the last three seasons with the Florida Panthers. He has won two Olympic medals with Finland.