A busy few weeks of re-signing players continued Wednesday, as the Lightning brought back the last of their restricted free agents, signing left wing Adam Erne to a one-year, $800,000 contract for 2018-19.Erne, 23, was a second-round pick in 2013 and has split time over the last two seasons between the Lightning and the AHL's Syracuse Crunch. In 23 games with Tampa Bay in 2017-18, he had three goals and an assist; in 41 games with Syracuse, he had 12 goals and 14 assists. A lower-body injury sidelined him in late March and he did not play again this past season.RELATED: Lightning locks up Kucherov with 8-year, $76 million dealThe Lightning have been busy with extensions for key players, re-signing Nikita Kucherov, Ryan McDonagh and J.T. Miller to longterm contracts in the last two weeks. The team has now re-signed four restricted free agents in goalie Louis Domingue, defenseman Slater Koekkoek and forwards Cedric Paquette and Erne.