Delaney has been dogged by knee problems in recent seasons and his current contract expires next month but the Welsh international will continue to undergo rehabilitation work at the club´s new training complex for the next couple of months after having surgery at the start of the year.
O´Neill said: "If Mark´s current programme goes according to plan, he would be hoping to be joining in with us towards the end of July - and I am happy for that to be the case. Mark´s contract ends in June but I will look at this and I think it is only right we should be looking after him until he is fit."
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