BUFFALO, N. Blues Jerseys 2020 .Y. -- The Buffalo Sabres have put their youth movement on hold a week after Pat LaFontaine took over. LaFontaine, the teams new president of hockey operations, announced a significant roster shuffle on Tuesday, when the Sabres demoted four rookies before their home game against St. Louis. Veteran defenceman Mike Weber also was activated from injured reserve after missing 10 games with a thumb injury and is expected to play against the Blues. Defenceman Nikita Zadorov was returned to his Canadian Junior team, the Ontario Hockey League London Knights. The move was made before Zadorov played his 10th NHL game, which is when his three-year contract would come into effect. Drafted 16th overall in June, Zadorov had a goal in seven games in Buffalo. Fellow 2013 first-round pick, defenceman Rasmus Ristolainen, and forward Johan Larsson were assigned to the Sabres AHL affiliate in Rochester, N.Y. Center Mikhail Grigorenko is also heading to Rochester but on a conditioning assignment. That move gives the Sabres two weeks to determine whether to recall Grigorenko or send him to his junior team in Quebec. Grigorenko has struggled finding a niche in Buffalo since being selected in the first round of the 2012 draft. After making the Sabres roster to start last season, Grigorenko was returned to Quebec in March. He made the Sabres once again this season, but has lacked playing time. Grigorenko has missed five of the past seven games and has two goals and an assist in 15 games this season. The demotions mark a significant shift in philosophy under LaFontaine and interim coach Ted Nolan. The two took over after general manager Darcy Regier and coach Ron Rolston were fired last week after the Sabres got off to a franchise-worst 4-15-1 start. Regier made it clear that he was intent on rebuilding the Sabres through younger players, no matter the teams record. On Tuesday, Nolan said the Sabres intend to fill the open roster spots later this week by recalling players from Rochester. One potential candidate is veteran forward Patrick Kaleta, who was assigned to Rochester after being waived by the Sabres two weeks ago. Fake Blues Jerseys . They showered him with "MVP! MVP!" chants. In many ways, it seemed like hed never been gone. St.Louis Blues Store . McCutchen hit his first home run in over a month, doubled twice and scored two runs to help the Pirates beat the Los Angeles Dodgers 5-3 on Sunday and take three of four from the defending NL West champions.The New Jersey Devils signed unrestricted free-agent forward Mike Cammalleri to a contract reportedly worth $25 million over five years and signed forward Martin Havlat to a one-year, $1.5 million contract. Cammalleri spent the past two-and-a-half seasons with the Calgary Flames with prior stints in Los Angeles and Montreal. He is coming off a five-year contract that paid him an average annual value of $5 million. In 63 games with the Flames in 2013-14, Cammalleri scored 26 goals and 19 assists. The 32-year-old forward has 236 goals and 266 assists for 502 points over 669 career games in the NHL. Cammalleri, a native of Richmond Hill, Ont. was drafted in the second round (49th overall) of the 2001 NHL Entry Draft. As for Havlat, the San Jose Sharks bought out the remaining year of the veteran forwards contract last week which had an average annuall value of $5 million. Blues Jerseys China. He then became an unrestricted free-agent. Havlat scored 12 goals and added 10 assists with a plus-14 rating in 48 games with the Sharks this season. He played one game in the playoffs, but failed to record a point. Havlat signed a six-year, $30 million with the Minnesota Wild prior to the 2009-2010 season and was later traded to San Jose in 2011. In 748 games with the Sharks, Wild, Chicago Blackhawks and Ottawa Senators the 33-year-old has 236 goals and 343 assists for 579 points. The native of Czech Republic was drafted in the first round (26th overall) of the 1999 NHL Entry Draft. The Devils also signed forward Steve Bernier to a one-year deal worth $600,000 and re-signed Stephen Gionta to a two-year contract.  The club also signed goaltender Scott Clemmensen to a one-year, two-way contract. ' ' '