KEY POINTS:
Luna Rossa are looking at possible changes to their boat as their America's Cup yachting campaign sits on the brink of elimination.
The Italians trail Team New Zealand 4-0 in the Louis Vuitton Cup final and another loss would mean the Kiwis going on to challenge for the Auld Mug.
Race five is due to be sailed off Valencia tonight and Luna Rossa trimmer Jonathan McKee said modifications to ITA94 were a possibility before then.
"There are certain things we can do, given a particular forecast," he said.
But McKee also indicated that other options for stopping Team NZ from wrapping the series were limited.
"If there's anything obvious, we would have tried it already."
He said Luna Rossa had simply been outsailed, but he ruled out any radical rethink on strategy.
"Obviously we've not won races so for, but it doesn't mean the way we've gone about sailing the race has been wrong," he said.
"We're just going to do the same things which in the past have been successful for us and hope that we can have a better day tomorrow."
Luna Rossa had gone into the showdown with Team NZ on the back of an impressive 5-1 upset over highly-fancied American syndicate Oracle Racing.
Then, all the talk had been about Australian helmsman James Spithill's menace in the start box and Brazilian tactician Torben Grael's wizardry in reading the wind.
But, apart from a close first race, predictions of a tight battle with Team NZ have turned out to be wide of the mark.
The Italians have yet to lead around any mark and today's race produced another easy win for NZL92 skipper Dean Barker and his crew, this time by 52 seconds.
There have been big comebacks in America's Cup history.
In 1983, Australia 2 ended the New York Yacht Club's 132-year stranglehold on yachting's biggest prize when it overturned a 3-1 deficit to triumph 4-3.
In 1992, Michael Fay's last New Zealand challenge went down 5-3 to Italy's Il Moro di Venezia in the LV Cup final, after leading 4-1 before having a win annulled in the protest room.
No teams, however, have come back from 4-0 down.
- NZPA