The suspension is the result of a missed drug test, not a failed one, sources said. The reason it hasn't yet been announced is that the appeal process is still going on.
No date for Bell's appeal has been set, though it's expected that it will be heard before the start of the regular season. If it's not overturned, he would miss the first four games of the season.
Bell was suspended for the first three games of 2015, which was later reduced to two games, for a violation of the policy on substances of abuse after he was arrested for marijuana possession and DUI in the summer of 2014.