The Tractor Boys could go top of the table with a victory having climbed into the playoff places, just two points off the summit as things stand.
It could have been even better for them too, but for a late equaliser robbing them of becoming the first side to beat Nottingham Forest in the league this season.
McCarthy will be delighted with how his side have bounced back from a disappointing derby defeat to Norwich City in August, particularly at home where they have won their last three matches without conceding.
Blackburn went into the season expecting to do battle with the likes of Ipswich for a place in the playoffs, but so far they have not been able to string a run of good results together.
The same sort of inconsistency that cost them a top-six push last season has dogged them again so far this time around, with four wins, four defeats and three draws in their 11 matches.
Just one of those victories has come in their last five outings, while they have failed to even score in their last two matches in the league.
Gary Bowyer will be eager for his side to improve their away form, which has seen them lose three of their last four games on the road by a two-goal margin.
Possible starting lineups
Ipswich: Gerken; Mings, Berra, Chambers, Parr; Bishop, Skuse, Hyam; McGoldrick, Murphy, Sammon
Blackburn: Steele; Baptiste, Hanley, Duffy, Olsson; Conway, Evans, Cairney, Marshall; Gestede, Rhodes
Sports Mole says: 2-1