The San Diego Chargers shopped outside linebacker Shawne Merriman over the weekend, Aaron Wilson of the National Football Post reports, but talks between prospective teams and Merriman's representatives on a long-term contract extension stalled.

Wilson reports that two, unidentified teams were interested in acquiring Merriman from the Chargers, who are still open to a trade.

Merriman totaled 187 tackles, including 39.5 quarterback sacks, and 8 forced fumbles during his first three seasons in the league, earning trips to the Pro Bowl each year and establishing himself as one of the most dominant young defensive players in the game. A knee injury limited Merriman to just one game in 2008, and Merriman was held to just 39 tackles and four quarterback sacks in 14 games last season.

A restricted free agents tendered at the "First- and Third-Round Level", Merriman cannot be traded until he signs his one-year tender, which would pay Merriman $3.269 million dollars in 2010.

Merriman has signed an "Injury Protection" waiver and is participating in the team's off-season workout program.

Should the Chargers trade Merriman, 2009 first-round pick Larry English, veteran Jyles Tucker, and 2010 third-round pick Donald Butler would compete for pass-rushing opportunities opposite Shaun Phillips.