Kaepernick expected to opt out of 49ers contract

San Francisco 49ers quarterback Colin Kaepernick is expected to opt out of his contract and become a free agent next month. The opt-out period is March 2-7, a league source told the San Jose Mercury News. The 29-year-old Kaepernick will make it official to opt out during that period, ESPN’s Adam Schefter reported Friday. Free agency…