Dee ihe na-aga n'ihu maka paragraf a - Ristolainen mere NHL mbụ ya na Buffalo Sabres n'abalị mmeghe nke oge 2013-14 n'abalị abụọ nke ọnwa Ọktoba afọ 2013, megide Detroit Red Wings. O nwetara ihe mgbaru ọsọ mbụ ya na NHL mgbe e mesịrị n'ọnwa ahụ, na October 25 megide Jacob Markström nke Florida Panthers. N'abalị ise nke ọnwa Jenụwarị afọ 2014, Ristolainen nyere goolu nke meriri na oge mgbatị n'egwuregwu ikpeazụ nke 2014 World Junior Ice Hockey Championship
megide ndị Sweden a na-emebeghị mbụ, na-enye Finland ọlaedo. O nwetara ihe nrite mbụ ya na NHL na 10 Disemba 2015 megide Calgary Flames. N'ime ime nke a, ọ ghọrọ onye mbụ na-agbachitere Sabres ka ọ gbaa ọkpụ atọ kemgbe Hockey Hall of Famer Phil Housley mere ya n'oge 1987/88.