Letestu announced his retirement form the NHL on Sunday, Aaron Portzline of The Athletic reports.

Letestu (illness) was taking part in Monday's training camp session, Ken Wiebe of Sportsnetreports.

Letestu (illness) returned from his conditioning assignment with AHL Manitoba on Monday.

Letestu (illness) was activated off injured reserve and sent down to AHL Manitoba on a conditioning assignment Monday.

Letestu (illness) participated in a 30-minute skate Monday, Mitchell Clinton of JetsTV reports. Head coach Paul Marice said that was "all he can handle" at this point.

Letestu has been diagnosed with Myocarditis, an inflammation of the heart, and will be out for six months, Rick Ralph of TSN 1290 Winnipeg reports.

Letestu (undisclosed) has been ruled out for the remainder of October, Ken Wiebe of The Athletic reports.

The Jets have placed Letestu on injured reserve, per the NHL media site.

Letestu is considered day-to-day with an undisclosed injury, Ken Wiebe of The Athletic reports.

Letestu signed a one-year, two-way contract with Winnipeg on Tuesday.