Castleknock's Peter Lawrie is on course to become the fourth Irish tour winner this season after a 68 left him tied for sixth at the Spanish Open.
Lawrie sits on 10 under, five shots behind leader Ignacio Garrido, going into Sunday's final round in Seville after shooting previous rounds of 68 and 70.
Darren Clarke is two shots further back after a 67 with fellow Irishman Paul McGinley rueing his first round 74 after shooting under-par rounds of 68 and 70 on Friday and Saturday to leave him tied for 39th at four under.
Garrido three-putted for a bogey at the 18th for a 72 but still leads countryman Miguel Angel Jimenez (67) by three shots on 15-under 201.
The 36-year-old's father Antonio won the Spanish Open in 1972 - less than three weeks after Ignacio was born - and the pair could become the first father-son duo to win the same European Tour event.
Mark Foster of England (68), Denmark's Soren Hansen (67) and Paraguay's Marco Ruiz were four strokes behind at 205.
Danny Willett of England was nine under through 14 but bogeyed the 15th and parred home for a 64 - the day's lowest round. The English amateur was seven shots behind of Garrido.