In the last year of his contract with the Thrashers in 2007–08, the team and Hossa could not agree on an extension, Hossa was acquired by the Pittsburgh Penguins at the trade deadline on 26 February 2008, along with Pascal Dupuis, in exchange for Colby Armstrong, Erik Christensen, prospect Angelo Esposito and the Penguins' first-round pick in 2008 (Daultan Leveille). In his Penguins debut two days later, Hossa injured his medial collateral ligament (MCL) in a knee-on-knee collision with Glen Murray of the Boston Bruins. Hossa missed the next six contests before rejoining the team for the conclusion of the regular season, playing on a line with Dupuis and Sidney Crosby. Hossa completed the regular season with 66 points in 72 games split between the Thrashers and Penguins. He had also appeared in his fourth All-Star Game while still with the Thrashers as the host-city.