LONDON, Feb 15 : Leeds United required penalties and Wolverhampton Wanderers endured a mud bath but both reached the fifth round of the FA Cup in a good day for top-flight sides on Sunday. Second-tier Birmingham City equalised late on at home to Leeds with a Patrick Roberts screamer after Lukas Nmecha had put the visitors ahead shortly after the interval. Leeds converted all their penalties in the shoot-out while Birmingham's Tommy Doyle had his effort saved by Lucas Perri before Roberts blazed