Other results (including Nottingham Forest's home defeat against Charlton) went the way of Mick McCarthy's unfancied outfit and they are now just two points outside the top six and level on points with their weekend opponents.
Speaking after a comeback win against the Rams, McCarthy said: "I don’t think we laid a finger on them in the first half, little Johnny (Williams) was getting kicked from pillar to post and it was us picking ourselves up off the floor. Second half we responded and I think we deserved it."
Crystal Palace loanee Williams has been impressive during his spell at Portman Road which is due to expire after Saturday's game against the Reds and netted the equaliser against the Rams.
Forest chairman Fawaz Al Hasawi, meanwhile, has confirmed the loan signing of Leeds United defender Lee Peltier after the deal stalled amidst the mayhem of Monday when Billy Davies was sacked and Peltier's former boss Neil Warnock was strongly tipped as a replacement.