Career
He was selected by the Boston Bruins, 40th overall, in the 2011 National Hockey League Entry Draft. Khokhlachev was selected 23rd overall in the 2010 Canadian Hockey League Import Draft by the Windsor Spitfires. After finishing the 2009-2010 season with MHK Spartak in the MHL in Russia, Khokhlachev signed with the Spitfires for the 2010-2011 OHL season.
On July 1, 2012 the Boston Bruins announced they had signed Khokhlachev to an entry level deal.
Khokhlachev signed with Spartak Moscow of the Kontinental Hockey League (KHL) to start the 2012-2013 season, but returned to Windsor to play for the Spitfires after just 26 games in the KHL. After 29 games in Windsor the Bruins recalled Khokhlachev to the Providence Bruins of the American Hockey League (AHL) where he finished the season. To start the 2013-2014 season Khokhlachev attended Boston Bruins training camp but was assigned to the Providence Bruins on September 20, 2013.
On April 13, 2014, Khokhlachev made his National Hockey League debut skating 15:14 with the Boston Bruins in a 3-2 loss to the New Jersey Devils.