Career
During Radulov's 2005–06 QMJHL season, he was signed to a three-year NHL contract by the Nashville Predators on January 9, 2006.
On October 21, 2006, Radulov made his NHL debut with the Nashville Predators against the Vancouver Canucks.
In Game Two of the first round of the 2007 Stanley Cup Playoffs, Radulov was suspended for one game for his hit on San Jose Sharks forward Steve Bernier.
On July 11, 2008, it was announced that although Radulov was still under contract with the Nashville Predators for one more season, he had signed a three-year deal with Salavat Yulaev Ufa of the Kontinental Hockey League (KHL). Radulov had previously notified the Predators organization of his desire to play in Russia, stating that he was being offered better conditions. Immediately after the announcement, the Predators, National Hockey League (NHL), and International Ice Hockey Federation (IIHF) all released statements emphasizing that Radulov's contract obligated him to the Predators through the 2008–09 season and that signing with a team in Russia was a direct violation of an agreement made the previous day between the NHL and all international hockey leagues to respect players' existing contracts. After the IIHF ordered that Ufa void Radulov's contract, Ilya Kochevrin, vice-president of the KHL, argued that Radulov was signed on July 5, before the agreement was made on July 10. While the contract remained disputed, the IIHF suspended Radulov from international play on July 18 as investigations continued, a suspension that was lifted soon as it appeared there was no legal ground to suspend Radulov.
After giving Radulov a September 1 deadline to notify his intentions to return to Nashville, the Predators suspended him, on September 2, without pay for the 2008–09 season.
On March 12, 2012 Radulov's agent Yuri Nikolaev confirmed Radulov was returning to the NHL on March 22, 2012, against the Pittsburgh Penguins. The day before the return, Radulov was presented his jersey at a press conference where the Predators announced they have lifted his suspension from the team, finalizing his return. In his return to Nashville, Radulov scored the Predators' only goal in a 5–1 loss to the Pittsburgh Penguins.
On June 6, 2012, the Nashville Predators announced that they would not be extending Radulov's contract, thus making him a restricted free agent.
On July 2, 2012, Radulov signed a four-year contract with CSKA of the Kontinental Hockey League (KHL) for 9.2 million per year.