Donegal Celtic 1-0 Portadown
It was the perfect debut for Darren Murray as he netted with three minutes left to give Donegal Celtic victory.
The summer signing from Newry City connected with a Johnny Harkness cross to blast in from eight yards.
Portadown had the better chances with Matthew Paget and Keith O'Hara going close for the visitors.
Ports midfielder Richard Clarke was sent-off for a poor challenge with two minutes left and DC keeper Niall Morgan denied Tim Mouncey in injury-time.