In this situation, the blinds are 200/400 in a No Limit tournament. First to act raises to 1600, next player calls, small blind folds, and big blind goes all-in with only 1800.
Can the first player reraise the second player?
Basically, is the 200 extra that the big blind pushed all-in considered a raise opening up more rounds of betting or, is it too low to be considered a raise?