Miller's goal cancelled out Zheng Zhi's early strike for Charlton

China international Zheng's swivel and shot from six yards in only the second minute put Charlton ahead.

But Miller, on loan from Manchester City, tapped home Chris Brunt's cross to equalise for the visitors.

The two teams, who each played weakened sides, ran out to a disappointing crowd and now face a replay on Tuesday week.

Alan Pardew's side stunned West Brom with less than 90 seconds on the clock as Lloyd Sam crossed to the far post.

606: DEBATE Give your reaction to Charlton's draw with West Brom

Darren Ambrose headed the ball back across goal to the feet of Zheng, who turned on the edge of the six-yard box and fired past Baggies keeper Dean Kiely.

West Brom scored with their first meaningful attack in the 34th minute as Chris Brunt meandered down the left and sent in a low cross which Miller tucked past Nicky Weaver.

Izale McLeod felt he should have had a penalty when he was blocked in the Baggies area by Martin Albrechtsen, but referee Keith Woolmer was not impressed.

After the break Charlton striker Luke Varney should have done better with a cut-back from Yassin Moutaouakil but his shot looped up for Kiely to palm clear.

McLeod then squandered an excellent chance when he opted to shoot with the unmarked Varney screaming for the square ball and Kiely made a comfortable save.

Kiely was the busier of the two keepers and was forced into further saves from Varney and McLeod, although Weaver did well to keep out a fierce drive from substitute Sherjill MacDonald.

Pardew made a triple substitution in the 77th minute and young striker Chris Dickson should have bundled home a winner six minutes from time but Kiely dived at his feet to grab the ball.

Charlton: Weaver, Bougherra, McCarthy, Moutaouakil, Ambrose (Basey 77), Zhi, Sam, Holland, Youga, Varney (Iwelumo 77), McLeod (Dickson 77).
Subs Not Used: Randolph, Semedo.

Booked: Holland.

Goals: Zhi 2.

West Brom: Kiely, Hoefkens, Cesar, Barnett (Pele 46), Albrechtsen, Koren (Morrison 67), Greening, Filipe Teixeira, Brunt, Gera (MacDonald 46), Miller.
Subs Not Used: Steele, Beattie.

Booked: Gera.

Goals: Miller 34.

Att: 12,682

Ref: Keith Woolmer (Northamptonshire).

BBC Sport Player Rater man of the match: West Brom's Ishmael Miller 7.80 (on 90 minutes).