Robbie Keane told his Ireland teammates to never underestimate the honour of playing for their country after he pulled on the green shirt for the final time.

The Ireland skipper bowed out with his 68th international goal in his 146th appearance as Oman went down 4-0 in a friendly international in Lansdowne Road, Dublin.

Robbie Brady and Jon Walters (2) scored the other goals, as Martin O'Neill's men gave the 36-year-old veteran the perfect send off.

Keane's 30-minute volley drew the Los Angeles Galaxy hitman level with legendary German striker Gerd Muller at 14th in the international all-time goalscoring charts.

The Dubliner proved he still had the nose for goals, but has no regrets about calling time on his career.

"No, I won't regret it," he said, "it's the right time. Will I miss it? Of course I will, having put that green jersey on for that long. It was a big part of my life but I don't think I will sit back and regret it now.

"It's been a pleasure, a privilege and an honour to have played for Ireland.

"Nothing beats putting that green jersey on, it's the best feeling in the world and they should never underestimate it, that's what I told the players in there.

"It's something I will never forget."