KANSAS CITY, Mo. (AP) — The Chiefs signed wide receiver Mardy Gilyard, tight end Kevin Brock and defensive end Marcus Dixon on Monday as they attempt to build depth at the bottom of their roster. Kansas City was particularly thin at wide receiver last year, and with the prospect of losing Dwayne Bowe to free agency, new general manager John Dorsey and coach Andy Reid are searching for players who could compete for roster spots next season. Gilyard would fit that mold. He’s a former fourth-round draft pick out of Cincinnati who spent last season with the Jets and Eagles, so Reid has some familiarity with him. Brock appeared in two games two years ago with Buffalo, while Dixon played in 22 games over the past three seasons for the Jets.