Cornerback Marcus Peters, who is expected to be traded by the Chiefs to the Los Angeles Rams after the new NFL league year begins on March 14, thanked Kansas City in an Instagram post Sunday. The Rams are expected to send draft picks to the Chiefs in exchange for Peters, a source told ESPN's Adam Schefter. Peters would presumably step in as the Rams' primary cornerback, which might spell the end of Trumaine Johnson's tenure with the team. Peters has compiled 19 interceptions in his first three NFL seasons and was named first-team All-Pro in 2016, the second of back-to-back Pro Bowl appearances. But Peters also joins the Rams with some character concerns. He was thrown off his college team at Washington for an altercation with an assistant coach. In December, he was suspended by the Chiefs for one game after tossing an official's penalty flag into the crowd and then retreating to the locker room without being ejected during a game against the New York Jets.