Career
He is currently playing with the Straubing Tigers of the DEL. Zalewski was drafted 153rd overall in the 2004 National Hockey League Entry Draft by the San Jose Sharks. Zalewski played high school hockey for the New York State Section III Division 2, New Hartford Spartans and was named New York State Player of the year in 2002. Zalewski played college hockey for four years at Clarkson University, scoring 108 points in 151 games.
Following a brief stint with the Worcester Sharks of the American Hockey League at the end of the 2007-2008 season, Zalewski played 75 games for the team in 2008-2009.
He collected 13 goals and 26 assists in his first season of professional play. After scoring a goal in three games at the beginning of the 2009-2010 AHL season, Zalewski made his National Hockey League debut with the San Jose Sharks on October 12, 2009 against the Phoenix Coyotes.
Zalewski was traded along with Jay Leach to the New Jersey Devils for Patrick Davis and Mike Swift. During the 2011-2012 season, Zalewski was recalled from AHL affiliate, the Albany Devils, and appeared in 7 games for New Jersey.
On July 18, 2013, Zalewski signed as a free agent to a one-year contract with Finnish club, Lukko Rauma of the Master of Science-liiga.