The 6-foot-3, 198-pound left wing was loaned to the KHL's SKA St. Petersburg to begin the 2020-21 campaign and recorded one point (0g/1a) in four games before eventually joining New Jersey for training camp. He also skated in one game for the Devils' American Hockey League affiliate, the Binghamton Devils, recording one point (1g/0a).
A fourth-round selection of the Devils (102nd overall) in the 2016 NHL Draft, Maltsev has totaled 22 points (12g/10a) in 50 career AHL contests, all with Binghamton.
Prior to playing professionally in North America, Maltsev was part of the St. Petersburg organization in Russia, totaling eight points (1g/7a) in 35 career KHL contests with SKA St. Petersburg. He also collected 39 points (18g/21a) in 50 career games for the club's junior team in the MHL and produced 49 points (14g/35a) in 90 outings with the organization's VHL team in Russia's second-tier professoinal league.
The St. Petersburg, Russia, native represented his country at the 2018 IIHF World Junior Championship and served as an alternate captain while recording two points (0g/2a) in five tournament games.
Acquired by the Avalanche on Feb. 26, 2018, Graves has recorded 46 points (14g/32a) and a +59 rating in 149 career NHL games, all with Colorado. He led the NHL with a +40 plus/minus rating in 2019-20, the first Avalanche player to lead the league in that category since Milan Hejduk and Peter Forsberg (+52) in 2002-03 and the highest plus/minus rating ever by a Colorado defenseman (since 1995-96).