John O'Shea and Park Ji-Sung both had good opportunities blocked in the box, while Zenit keeper Vyacheslav Malafeev did well to deny Rooney with the minutes ticking down.
Villa manager Gerard Houllier's youthful side showed plenty of endeavour but were desperately short on the class their opponents had at their disposal and were heavily punished as they continued the struggles the Frenchman has endured since succeeding Martin O'Neill in the Villa Park hot-seat.
The spotlight at Croke Park though will centre on the legendary Brian O'Driscoll as he follows Ireland team-mate John Hayes into the 100-cap club for his country.
Hartley was cited by an independent match commissioner for making contact with the eye areas of O'Connor, Joe Worsley and Haskell during his side's 35-29 defeat at Adams Park.
The 63-year-old Frenchman has had a difficult time since taking over at Villa Park in September following Martin O'Neill's shock resignation in August.