[6] Ultimately though, Rychel was not traded during the season, and split time between the club and their new AHL affiliate, the Lake Erie Monsters.

[6] On February 25, 2018, Rychel was traded along with Rinat Valiev and a 2018 second-round pick to the Montreal Canadiens in exchange for Tomáš Plekanec and Kyle Baun.

[8] As an unsigned restricted free agent with the Canadiens over the summer, Rychel was traded by the Canadiens to the Calgary Flames in exchange for fellow restricted free agent, Hunter Shinkaruk, on August 20, 2018,[9] and signed a one-year contract with the Flames.

[13] Rychel struggled to adapt to the KHL and was scoreless in just 7 games with Neftekhimik before his contract was terminated on October 8, 2019.

[14] Following his brief stint in the KHL, Rychel returned to North America and opted to resume his career in the AHL, by agreeing to a one-year contract with the Charlotte Checkers, affiliate of the Carolina Hurricanes, on November 19, 2019.