Reilly’s whole world was thrown for a loop in mid-November, when testing while recovering from a concussion turned up an abnormality in his heart that required immediate attention. The issue was never threatening to his career, but that did not make it easy to deal with.

Reilly hasn't played since being diagnosed with a heart condition in testing after suffering a concussion on Nov. 1.

Defenseman Mike Reilly will play in his first game since Nov. 1 on Sunday night when the New York Islanders host the Florida Panthers at 7:30 PM ET.

Reilly to make his return to game action, Pelech (lower-body, day to day) misses skate and Boqvist participates in non-contact jersey

Islanders defenseman Mike Reilly will return to the lineup Sunday vs. Florida after undergoing heart surgery in November, per Stefen Rosner of The Hockey News.

Sweat was still clinging to Mike Reilly’s face, caking his hair, as he detailed his past four months after coming off the ice Saturday morning.

This was four months ago, about a week after Islanders defenseman Mike Reilly suffered a concussion on Nov. 1 after taking a high hit from the Sabres’ Jordan Greenway. During a visit to a specialist to deal with his head injury, a condition was detected in his heart that ultimately required surgery.

New York Islanders defenseman Mike Reilly will make his return to the lineup Sunday versus the defending Stanley Cup champion Florida Panthers after being sidelined for the past 54 games, reports Stefen Rosner of The Hockey News.

Mike Reilly’s recovery from heart surgery has taken the next step forward. Reilly, who has started to travel and practice with the Islanders recently, has been officially cleared for contact, a key hurdle if he is to play again before the end of the season.