Georgia captain Merab Sharikadze insists Ireland remain one of the world's best teams.

The Irish have suffered a succession of defeats against elite opposition, losing twice to England and once to France since last year's World Cup quarter-final exit at the hands of New Zealand.

Sharikadze will lead his country out in Dublin on Sunday afternoon bidding to spring an upset against Andy Farrell's side in the Autumn Nations Cup.

The 27-year-old believes Ireland – ranked fifth in the world – should be considered among rugby's leading nations, citing contrasting recent results between New Zealand and Argentina to illustrate his point.

"I would say that difference is very close," Sharikadze said of the gap between Ireland and higher-ranked sides.

"If you take today's example, we've seen Argentina beat New Zealand two weeks ago and today (Saturday) they lost, so you can't really tell who is a better team. It's decided in the game day.

"One day Ireland will win and the following week the opposition will win.

Centre Sharikadze, who has spent his entire club career in France, has called for the team to be more efficient with their chances.

"We need to use our opportunities better. Every time we have an opportunity to score, we need to score," he said.

"At the moment we haven't been very careful with that, so we wasted quite big opportunities.

"Hopefully for tomorrow's game we can be better than that."