Barcelona equaled the Spanish top flight record of 38 successive games without defeat following their 3-1 La Liga win over Leganes on Saturday.
"They are important records and we can achieve something with a win or draw tomorrow".
And Valverde was pleased with his side's showing. Keeping his free-kick aside, his other two goals came because of two quality passes.
For extra motivation, the Blaugrana can reach 38 games without loss if they avoid defeat here - a run that would match Real Sociedad's national record from 1979/80.
Real coach Zinedine Zidane, with one eye on the Champions League quarter-final second leg against Juventus on Wednesday, started with Luka Modric and Karim Benzema on the bench, the latter coming on to spare Ronaldo the final half an hour.
Leganes failed to provide any real attacking threat in the remaining stages of the second half as Barca went into the break leading by two goals.
Betis temporarily at least, moved into fifth place with a 2-0 home victory over Eibar thanks to Sergio Leon's 11th goal of the season and an own goal from Anaitz Arbilla. "We have lost a lot of our offensive potential but we have improved in defence", Messi said earlier in this season.
"This unbeaten record has not only been achieved this season, but also past year under (former coach) Luis Enrique", said Barca coach Valverde.
He praised his Croatian midfielder, Ivan Rakitic, whom he described as an extraordinary player who can cope in a number of different positions. A competitive and versatile squadThere was more than a hint of panic in the Catalan press at Barca's scarce transfer activity last summer after Neymar was sold, but the squad has proved surprisingly versatile.
Messi was undoubtedly the best player on the pitch, but Philippe Coutinho also impressed throughout for Barcelona.