Ciro will join siblings Thiago Messi who was given birth to in November 2, 2012 and Matteo Messi who was born September 11, 2015.
"Leo is the best player in the world and we always need him", Coutinho told reporters. "We hope that he translates that into La Liga games".
With 15 minutes remaining, Valverde introduced Andre Gomes and Lucas Digne as he had Wednesday's UEFA Champions League clash on his mind. Barcelona will look to make good on the 1-1 draw it earned in the away leg of their round-of-16 tie.
The win extends Barca's league lead to 11 points over second-placed Atletico Madrid, who will play on Sunday.
Jordi Alba's long cross met Suarez's run near the penalty spot, where the striker floated a header into the corner of the net for the opening goal.
Coutinho nearly capped off a great evening with his second goal, another sublime interchange with Suarez nearly brought the Brazilian in for the goal but he couldn't quite gather the ball before Roberto had charged him down.
"It's not a test ahead of Chelsea, it's a game to win to continue picking up point in the league".
In particular, Dembele's brilliant turn and pass was bettered only by Coutinho's flicked finish for what was a superb second goal.
Dembele, 20, has had an injury-hit debut season in Spain and has been restricted to just seven La Liga appearances since completing his £135-million ($186-million) transfer from Borussia Dortmund last August.
Ousmane Dembele has endured a hard debut season, plagued by problems with fitness and form, but the forward has shown signs of improvement and played in the Catalan Super Cup win over Espanyol on Wednesday.