Dolphins linebacker Lawrence Timmons left the team for unknown reasons on Saturday and is not expected to play in Miami’s opener at the Los Angeles Chargers on Sunday, according to a source.

The Dolphins know w Timmons is but declined to elaborate or comment on the matter.

The Dolphins signed Timmons to a two-year, $12 million contract during the offseason after spending the first 10 years of his career with the Pittsburgh Steelers.

Sunday’s game will end a streak of 101 consecutive starts for Timmons, which ranks 10th among all active players and second among all defensive players, behind only Ravens cornerback Brandon Carr.

Even with Timmons, the Dolphins already were shaky at linebacker after losing two key players for the season: Koa Misi and rookie second-round draft pick Raekwon McMillan.

Linebacker Ray Maualuga is out Sunday with a hamstring injury.

Mike Hull is expected to start in Maualuga’s absence, just his second career start.