<s>
The	O
1999	O
AT&T	O
Challenge	O
was	O
a	O
men	O
's	O
tennis	B-Device
tournament	O
played	O
on	O
Clay	O
in	O
Atlanta	O
,	O
Georgia	O
,	O
United	O
States	O
that	O
was	O
part	O
of	O
the	O
World	O
Series	O
of	O
the	O
1999	O
ATP	O
Tour	O
.	O
</s>
