Afanasyev, 23, was drafted 45th overall by Nashville in 2019. Last season, he scored 54 points in 56 games in the AHL and played two NHL games without registering a point.
Wiesblatt, drafted 31st overall by San Jose in 2020, has yet to play in the NHL but has spent three seasons in the AHL, reaching the conference finals this year with the Milwaukee Admirals.