Real Madrid star
Madrid, who ended Barca's three-year reign as Spanish champions last season, would have been eager to get its defence off to a winning start and it looked on course to do that after taking a 10th-minute lead against Valencia through Gonzalo Higuain.
However, Valencia, who finished third last term behind Madrid and Barca, hit back just before half-time through Jonas to salvage a 1-1 draw from its trip to the Bernabeu.
Ronaldo admitted it was not the ideal start to its campaign, but was keen to look forwards - with a mouthwatering encounter against Barca next on the agenda.
"We had chances to score one or two more goals and get the win. This is the first match and it's not the best result, but we must continue.
"Now we are only thinking about the match against Barcelona. We have a Supercopa match we have to win. We will give our all to win the game there and then win here to lift the cup."
According to a Madrid medical statement, Pepe, having undergone a CAT scan, "has remained stable with good level of awareness" and will undergo further tests today (Monday Spain time).
Jamie Carragher has urged Liverpool to act swiftly to sort out the future of striker Luis Suarez.