Does he start Nelson Semedo, who Barcelona spent a fair amount of money on this summer but has struggled with inconsistent playing time, or does he turn to Aleix Vidal, who has played decently this season but in a more advanced position?
And Valverde has provided a positive update for fans dreaming of a transfer.
Coutinho remains the Catalan club's priority, according to the local press, but there is also reported to be a firm interest in Griezmann.
"It was something that could have happened and it did, there's nothing we can do about it", said Valverde. Of course, the club, like all clubs, is open to doing business in the January window, even though we're happy with what we already have.
Javier Mascherano is facing a month out after pulling up with a hamstring injury while representing Argentina during the global break, while Gerard Pique and Samuel Umtiti are a yellow card away from one-match bans.
"We have good centre-backs", the coach said when asked if he was anxious about his options in defence.
Alcacer was again heavily involved as his close-range effort from the left of the area was pushed clear by Cuellar, but the ball fell to Suarez whose half-volley went into the net off the foot of Ruben Perez. "Circumstances can never be foreseen and injuries come when you least expect them".
"We always try to play our best, it's not always possible. Then there's the B team, too".
Suarez sat out Uruguay's friendlies against Poland and Austria during the global break to aid his recovery from an ongoing knee problem.
Barca now lead second-placed Valencia by seven points ahead of their trip to Mestalla next weekend, with both Real Madrid and Atletico Madrid 11 points adrift before they face off in the Madrid derby later on Saturday (1945 GMT).
"What concerns us about Leganes is that they concede very few goals".
"It's a team that supports each other and believe in what they do".
"Perhaps the result implies we dominated the game more than we actually did", Barca coach Ernesto Valverde told reporters. It's enough to look back at last season to see what happened at these types of grounds where points were lost.