The Flyers began the 2009–10 season with some major changes, allowing goaltenders Martin Biron and Antero Niittymaki to depart via free agency, replacing them with former Ottawa netminder Ray Emery and former Flyer Brian Boucher, and significantly upgrading the defense with the addition of Chris Pronger from Anaheim. Pronger came at a price, however, costing the Flyers Joffrey Lupul, Luca Sbisa and the Flyers' first-round draft picks in both 2009 and 2010. The season began in earnest, though it soon unraveled with mediocre play that cost head coach John Stevens his job in December. Peter Laviolette was hired as his replacement in order to reinstitute accountability and restore success to the Flyers, though the results were not immediate; the Flyers suffered a 2–7–1 stretch immediately following his arrival. Injuries took a major toll on the Flyers, with Blair Betts, Daniel Briere, Jeff Carter, Simon Gagne and Kimmo Timonen all missing significant numbers of games, though no position was nearly affected as much with injuries as goaltending. Emery suffered a hip injury in December, played sporadically afterwards and ultimately underwent season-ending surgery. Boucher suffered a hand injury shortly thereafter, which allowed journeyman goaltender Michael Leighton to step in and make an immediate impact. Leighton went 8–0–1 in his first ten starts, including a tough 2–1 overtime loss in the 2010 Winter Classic to Boston at Fenway Park on New Year's Day. However, Leighton was forced out of the line-up in March with a high ankle sprain, necessitating Boucher's return as starter. All told, seven different goaltenders suited up for the Flyers at various points throughout the year. Mediocre play down the stretch forced the Flyers into a do-or-die shootout with the Rangers in the final game of the regular season. Boucher stopped final shooter Olli Jokinen to clinch the seventh seed in the East and a first-round matchup with New Jersey.