The joint leaders of the eircom League Premier Division clash tonight for the first time this season in the first Setanta Cup Semi-Final.
St Pat's and Drogheda United are the early pace setters in the league, but tonight their attention is on securing a place in the Setanta Cup final on Saturday, May 12th.
St Pat's unbeaten in all competitions this year have a full squad to choose from.
Please note that kick-off time for tonight's fixtures is 8.05pm and it will be screened live on Setanta Ireland.
A capacity crowd is expected at Richmond and all supporters are encouraged to arrive early to avoid the queues.
If the match remains level at the end of 90 minutes, extra-time will be played and penalties if required.