Mayo star Lee Keegan feels the GAA need to get answers on why Hawkeye malfunctioned last weekend.
A point from Galway's Shane Walsh was incorrectly ruled wide by the technology on Saturday evening before being reinstated at half-time.
It led to Hawkeye not being used in the second-half, or in Sunday's match between Dublin and Kerry.
Keegan says there are real concerns over its reliability ahead of this weekend's All-Ireland Hurling final..