DETROIT – Sources close to the Detroit Lions have confirmed to Local 4′s Bernie Smilovitz that trade talks concerning quarterback Matthew Stafford have been underway for a couple of weeks. Stafford’s wife Kelly posted on her Instagram account saying if her husband were to be traded, one destination she would be interested in is California. More: Sources confirm Lions have had Matthew Stafford trade talksPosted on Kelly Stafford's Instagram account (WDIV)The Los Angeles Chargers did say goodbye to quarterback Philip Rivers last week. Stafford has played 11 seasons with the Lions, starting in 2009. He was the first overall pick in the NFL draft the same year.