Roy Keane will be at Middlesbrough on Saturday as the Republic of Ireland assistant manager runs the rule over veteran goalkeeper Shay Given.
Keane will watch the Teessiders in their Sky Bet Championship clash with Charlton at the Riverside Stadium.
Given, whose loan spell at Boro from parent club Aston Villa is due to expire at the end of next month, retired from international football after the Euro 2012 finals with 125 senior caps to his name.
However, O'Neill has indicated he is open to discussions with the 37-year-old, who has hinted he might like to return, as he plots the way forward after taking over from Giovanni Trapattoni.
Millwall's David Forde and Sunderland's Keiren Westwood have been the main contenders for the Ireland number one spot since Given's retirement.
Westwood is facing months on the sidelines after undergoing shoulder surgery, leaving Darren Randolph and Rob Elliot as Forde's understudies when the squad last met up in November last year.