Complex sentence: Christopher Martin (born December 19,1960 in Huntsville, Alabama) is a retired American football linebacker in the NFL for the New Orleans Saints, Minnesota Vikings, Kansas City Chiefs, and the Los Angeles Rams.
Split into simpler sentences: Christopher Martin (born December 19,1960 in Huntsville, Alabama) is a retired American football linebacker. He played in the National Football League for the New Orleans Saints, the Minnesota Vikings, the Kansas City Chiefs, and the the Los Angeles Rams.