The original report came from Jim Wyatt of The Tennessean, who said there were five teams interested in Marks' services, to which Vacchiano confirmed the Giants were one of the teams:
Five teams have already expressed an interest in #Titans DT Sen'Derrick Marks— Jim Wyatt (@jwyattsports) March 10, 2013
The 26-year-old, a former second-round pick in 2009 out of Auburn, has spent the last four seasons with the Titans.
In 2012, Marks started 14 games for Tennessee and had 41 total tackles, 1.5 sacks and one forced fumble. Before 2012, he had started just 13 games during his first three seasons, but he worked his way up the depth chart in Tennessee.
Marks has made enough of an impact to generate decent interest around the league, especially from the Giants. With the Giants releasing Chris Canty and Rocky Bernard a free agent, it makes sense that they're looking at adding another potential tackle to bolster the defensive line.
They have Linval Joseph; Shaun Rogers, who missed all of 2012 with a blood clot in his leg; Markus Kuhn, whose rookie season ended with an injury as well; and Marvin Austin, who is unproven in the NFL.
Marks also fits the Giants' mold of an under-the-radar-type free agent who ends up making a positive impact during the season.
The hot stove in the NFL will go from warm to boiling over the next 48 hours. It'll be really interesting to see what other names get tied to the Giants as well.