Alex Scott presents action from fourth-round ties, including Burton Albion v West Ham United at Pirelli Stadium, and Burnley v Mansfield Town at Turf Moor. The Brewers played host to the Premier League Hammers after successfully avoiding an upset against non-league opposition in each of the first three rounds, and will have hoped to cause a cup shock of their own. Meanwhile, after claiming a memorable 4-3 victory away to Sheffield United last time out, the Stags were aiming for another scalp away to the top flight Clarets. Plus, a round-up of the other ties played so far. With analysis from Shay Given and Ellen White, and reports from Damian Johnson