The May 19 rematch between D.C. boxer Lamont Peterson and Amir Khan has been called off in the wake of this week’s news that Peterson tested positive for a banned substance.

After months of out-of-the-ring sparring over the result of their last bout, D.C. native Lamont Peterson and Amir Khan will battle it out again on May 19 in Las Vegas.

D.C. native Lamont Peterson might be fighting again soon, but it might not be against anyone unfamiliar.