Niang, from Texas Christian, is an offensive lineman. He figured in the playing picture at guard as a rookie but eventually could be moved to tackle. The Chiefs have several candidates to start at guard, including veteran free-agent additions Kelechi Osemele and Mike Remmers and Andrew Wylie, a part-time starter last season.
Niang seemed eager to get the season going during a July 25 interview after Chiefs rookies had started training camp.
"I'm super excited,'' he said. "It's nice to see how they're doing everything safety-wise, keeping us safe and making us feel comfortable, but I'm really excited to get on the field."