PFT Live: Brent Grimes, PFT Planet calls and tweets

Cornerback Brent Grimes had a strong first season for the Dolphins in 2013 and decided that he’d like to return for more rather than heading elsewhere in free agency. Grimes re-signed with the Dolphins in early March for four years and $32 million, including guarantees of $16 million. On Friday’s PFT Live, he’ll tell Mike…