Callahan officially announced his retirement on social media Wednesday.

EDGE Analysis

Callahan's retirement was more of a formality after he spent the entire 2019-20 campaign on long-term injured reserve. Over the course of his 13-year NHL career, the winger racked up 186 goals and 200 helpers in 757 appearances for the Rangers and Lightning, adding another 39 points in 121 postseason contests.

Callahan remains on long-term injured reserve, with his contract set to end in July.

EDGE Analysis

Callahan's contract is on Ottawa's books simply to help the team reach the salary floor, and he'll likely announce his retirement on July 1, the day his deal ends. The fact that his Twitter handle still says he's "#24 for the Tampa Bay Lightning" despite being traded to Ottawa four months ago is a pretty obvious sign that he's never going to play in the NHL again.

The Lightning traded Callahan (back) and a 2020 fifth-round pick to the Senators in exchange for Mike Condon and a 2020 sixth-round pick Tuesday.

EDGE Analysis

This is nothing more than a salary dump for Tampa Bay. Callahan's playing career has almost certainly come to an end due to a degenerative disc disease of his lumbar spine, so the Senators will simply place him on long-term injured reserve once the regular season gets underway. The veteran forward still has one year remaining on his contract, so he likely won't officially announce his retirement until it expires.

The Lightning placed Callahan on long-term injured reserve Thursday due to a degenerative disc disease of the lumbar spine.

EDGE Analysis

Callahan was considered a candidate for buyout, but it appears he may have already played the last game of his hockey career. The veteran collected just 17 points over 52 games with the Lightning during 2018-19 and officially remains under contract through 2019-20.

Callahan played two of the Lightning's first-round games against the Blue Jackets, finishing with four penalty minutes and four shots in limited ice time.

EDGE Analysis

Callahan plays the kind of abrasive, physical game that a lot of people believe fits postseason hockey. But he was relegated to the media box a lot this season and flat-out told he was the team's 13th forward in the second half of the year. Changes are likely coming after the Bolts were swept out of the playoffs and Callahan is a likely target. The oft-injured winger has one year left on a deal that pays $5.8 million. The probability of a buyout is much more realistic than a trade.

Callahan (undisclosed) will slot back into the lineup for Sunday's Game 3 matchup with Columbus.

EDGE Analysis

Callahan missed the first two games of the series with this undisclosed issue, but it seemingly won't cost him a third. In the regular season, the New York native recorded 17 points (seven goals, 10 assists) over 52 games.

Callahan (undisclosed) remained among the extras at Thursday's morning skate, indicating he should sit out again for Game 2 against the Blue Jackets, Erik Erlendsson of LightningInsider.com reports.

EDGE Analysis

Not much light has been shed on the nature of Callahan's injury, but it will cost him at least the first two games of the series. Without him available, the Bolts will run with the same lineup that took the ice in a Game 1 upset loss. Callahan's next opportunity to return comes Sunday when the series heads to Columbus for Game 3.

Callahan (undisclosed) isn't expected to play against the Blue Jackets on Wednesday for Game 1 of the conference quarterfinals, Joe Smith of The Athletic reports.

EDGE Analysis

It appears that Mathieu Joseph will slot in on the fourth line right wing for the Bolts rather than having the team push Callahan while he continues to deal with the mystery issue. Look for Callahan to be reevaluated ahead of Game 2 on Friday.

Callahan (undisclosed) was not on the ice at Monday's practice, reports TampaBayLightning.com.

EDGE Analysis

Head coach Jon Cooper said Callahan's removal from Saturday's game after just four minutes was "precautionary" and that he hoped the winger would be at practice Tuesday. Game 1 against Columbus is on Wednesday.

Callahan (undisclosed) left Saturday's game against Boston early in the second period and did not return.

EDGE Analysis

We're not sure what happened. All we know is that his last shift was three seconds long. Callahan has a long history of injuries, so the timing of this one is awful for the winger. He's already a fringe player for the Bolts, but his gritty game fits the postseason.