Allen Iverson is facing alcohol and gambling issues that have derailed his career, according to a number of sources.

Stephen A. Smith of the Philadelphia Inquirer wrote Monday that the issues could threaten Iverson's post-basketball well-being.

Iverson's gambling problem is serious enough that he has been banished from casinos in Detroit and Atlantic City, N.J., according to Smith.

Sources are concerned that Iverson "will either drink himself into oblivion or gamble his life away."