Messi left out for the trip to Dynamo Kiev

and

has been removed from Koeman's list and they join Gerard Pique on the sidelines, while the Spanish defender going to miss most of the season after suffering serious pain during Saturday's 1-0 Liga loss to Atletico Madrid.

"They need to take some rest and, after the good performances in the Champions League, it is a good time for them to rest," Koeman told.

has scored six goals in 11 appearances for

this season, five of those goals have come from the penalty spot.

The 33-year-old is no longer fully dedicated to the club's cause after asking for a transfer in the summer window, and he is thinking to leave Camp Nou in 2021 after being in the final eight months of his current contract.

Manchester City head coach Pep Guardiola poured cold water on rumors of a possible reunion with

at Etihad Stadium being imminent.

“

is a player from

," said Guardiola, who coached the playmaker at Camp Nou between 2008 and 2012. 

"What I want is [for

] to finish his career there. I would love it, I would wish it. That is what I said I don't know how many times, maybe a thousand times."

have three wins from three in the Champions League this season, over Ferencvaros, Juventus, and Kiev in Group G.