Source: Team_Talk
North End boss eyes new faces
Sean St Ledger limped off with a knee injury in the second half in Saturday's 1-1 draw at Championship rivals Ipswich.
He could miss the Republic of Ireland's forthcoming World Cup qualifiers and Irvine said: "He's got a bit of a problem on the outside of his knee.
"Whether it will keep him out of the Ireland squad or not I don't know.
"We know our financial constraints and limits, and will bring in players if we think they are the right ones for the right money and can improve the squad."