The Patriots made their first offensive line transaction yesterday, but it didn’t involve their most prominent free agent remaining on the market. Tackle Will Svitek signed a one-year, $1 million contract, according to a source. The 6-foot-6, 308-pounder can play both tackle positions and will compete for a roster spot in camp. This is a depth move that has nothing to do with free agent right tackle Sebastian Vollmer, who is still waiting for his market to set. The thinking is once Jake Long signs, the following wave of tackles will understand their value and follow suit. Svitek, 31, was a sixth-round pick out of Stanford in 2005, and the Chiefs converted him to tackle after he played on the defensive line in college. He spent three seasons in Kansas City before being out of football in 2008 and returning to play in ’09 for the Falcons. He has started 16 games in his career — 10 with Atlanta in 2011 — and missed last season due to an arm injury. Svitek, who was born in the Czech Republic, joins tackles Nate Solder, Marcus Cannon and Markus Zusevics on the Patriots roster. Sanders siesta The Pats still haven’t made an official move on Pittsburgh Steelers wide receiver Emmanuel Sanders. Steelers general manager Kevin Colbert said yesterday the team has not received an offer sheet from Sanders, according to the Steelers Depot website. This merely clarifies a situation that was the subject of conflicting reports over the weekend. Sanders visited with the Patriots on Friday.