Career
He is currently playing with Neftekhimik Nizhnekamsk of the KHL. Ryasensky made his senior debut in the Russian Superleague with Ak Bars Kazan before transferring to Neftekhimik Nizhnekamsk for the inaugural season of the KHL in 2008-2009 season. Over the next six seasons Ryasensky spent time also with The Human Context CSKA Moscow and SKA Saint St. Petersburg. In the 2014-2015 season, Ryasensky was traded by SKA Saint St. Petersburg along with Alexei Grishin and Mikhail Tikhonov in a return to Neftekhimik Nizhnekamsk in exchange for Nikolai Belov and a first-round pick on November 24, 2014.
On November 24, 2015 on the initiative of the player, the club terminated the contract.
On December 21, 2015 again signed a contract with Neftekhimik Nizhnekamsk before the end of the season.