Manchester United emerged as favourites to reach the UEFA Champions League final after a goalless draw with Barcelona in their semi-final first leg clash at Camp Nou on Wednesday.
It could have been so much better for the English champions if Ronaldo had not missed a third minute penalty but after an enthralling contest that Barcelona undoubtedly edged, United will not complain too loudly about the outcome.
The visitors' display never threatened to scale the heights they have touched at times this season and have resulted in Ronaldo, Wayne Rooney and Co being hailed as the richest collection of talents ever assembled by the club by both their manager and Sir Bobby Charlton.
But a gritty defensive display and the relatively meagre ration of real chances they afforded Barcelona will have given Ferguson justifiable cause for optimism about the outcome of next Tuesday's second leg.
Deprived by a gastric bug of the services of centreback Nemanja Vidic, Ferguson must have thought his luck had turned for the better when Ronaldo headed Rooney's corner against the arm of Gabriel Milito just 90 seconds into the match.
The defender, drafted in to replace Barca's suspended captain Carles Puyol, could do little to get out of the way but the fact that his arm was raised ensured Swiss referee Massimo Busacca had no hesitation in pointing to the spot.
Against the background of a cacophony of Catalan catcalls, Ronaldo's customary pre-penalty gunslinger stance appeared as confident as ever.
The strike that followed was anything but however and his side-footed slice carried the ball a foot wide of Victor Valdes's left-hand post.
"I didn't change my style for the penalty," said Ronaldo. "But now I will score in Manchester. "
Barcelona immediately set about making the most of their let-off and United lived dangerously for a while as Lionel Messi repeatedly jinked and swerved his way into dangerous positions.
The sight of Rooney desperately hoofing the ball to safety from deep inside his own box was symptomatic of the problems United were encountering in coping with the intricate passing patterns woven by their hosts .
But with the exception of two free-kicks within a yard of the 18-yard line, both of which were blasted into the United wall, and a deeper delivery from Xavi that Rafael Marquez narrowly failed to connect with, the attractive approach work was not yielding clear cut chances.
Ferdinand on form
The bluntness of Barcelona's cutting edge in part reflected the fact that Rio Ferdinand was winning his personal battle with Samuel Eto'o and it was not until five minutes into the second half that the Cameroon striker finally escaped his shadow.
But after skipping past the England defender on the right of the box, his attempt to pick out Messi was thwarted by Michael Carrick's important intervention.
Two minutes later, Iniesta's delightful little flick helped a pass from Messi into the path of Eto'o but, from a tight angle, his shot ended in the side netting.
Almost immediately Carrick went equally close after collecting a corner at the backpost and sidestepping Marquez, who will miss next week's second leg after a first-half booking he incurred for a trip on Ronaldo.
Van der Sar had his first real save to make just before an hour had elapsed, falling to his right to smother Xavi's low drive.
The Dutch goalkeeper followed that up with two competent saves from substitute Thierry Henry in the closing minutes but neither strike from the former Arsenal captain was sufficiently well-directed to truly threaten to break the deadlock.
As you might expect, it was the Manchester United manager who was more pleased with the overall outcome.
"It was a professional performance and as I said at half-time we sealed off areas where Barcelona normally do well. There was a lot of play on the edge of our box but we defended well.
"We should have done better with our possession and we gave the ball away too easily. The result gives us a good chance."