The Oilers have invited veteran centre Chris Kelly to training camp on a PTO.
The 36-year-old native of Toronto has played 833 regular season NHL games, scoring 123 goals and adding 166 assists for 289 points. Kelly has also played 92 NHL post-season games, recording 12 goals and 20 assists.
The forward played his junior career for the Ontario Hockey League's London Knights before making the jump to the professional ranks. He was selected 94th overall in the third round of the 1999 NHL Draft by the Ottawa Senators.
Kelly has played for two NHL teams in his career: Senators and Bruins. He wore the "A" on his sweater for Boston from the 2011-12 season to his last there in 2015-16.
The vet returned to Ottawa last season, playing 82 games and scoring five goals, adding seven assists.
Kelly also won a Stanley Cup in 2011 with the Boston Bruins, where Oilers President of Hockey Operations and General Manager Peter Chiarelli was GM at the time.