Terms of the deal were undisclosed, although it is believed to be a multi-year deal.
Matua marks the first rookie that Detroit has signed thus far with only 48 hours remainining until rookies are scheduled to report to training camp in Allen Park.
Roar Report has also learned that Detroit's top three selections -- ninth overall pick LB Ernie Sims (Florida State), second round pick FS Daniel Bullocks (Nebraska) and third rounder RB Brian Calhoun (Wisconsin) -- are unlikely to be signed before camp opens.
According to sources, "negotiations have stalled." One agent went as far as saying, "not only are we not on the same page as the Lions, (as far as negotiations are concerned) we are not even reading the same book!"
But any issues preventing a deal between the Lions and Calhoun and Bullocks is odd. Both players are sandwiched between draft picks that have already signed deals, setting an obvious market price that both sides should be able to work from within.
Matua, meanwhile, is expected to fill a reserve role in Detroit's offensive line if he manages to make the team. A projected mid-round selection, Matua slid to the 217th pick overall, and will have to battle with a plethora of guards if he hopes to have an impact on the Lions in 2006.