FIG. 1 is a front perspective view of a barbecue grill showing our new design;
FIG. 2 is a perspective view thereof in an open position;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a front view thereof;
FIG. 6 is a rear view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The details shown in broken lines form no part of the claimed design.