Matic and Costa performed a key phase in Chelsea’s run to the Premier League name closing season.
But supervisor Antonio Conte instructed Costa he was once surplus to necessities in the summertime and bought Matic to Manchester United in a £40million deal.
Costa seems to have sealed his inevitable go out from Chelsea once they agreed to promote the 28-year-old Spain world again to Atletico Madrid previous this week.
And when requested about Matic and Costa’s departures, Willian instructed Sky Sports: “These gamers are nice gamers, we pass over those gamers, however Chelsea at all times attempt to convey gamers with high quality.
“I believe the gamers that arrive have the standard to play right here and the squad and the crew are nonetheless sturdy. And we need to push until the tip of the season.
“It is hard to discuss that on account of route whilst you lose gamers like that, it’s dangerous.
“But we’ve nice gamers right here and we should be glad in case you are right here, or in Manchester or Madrid.
“You have to take a look at and at all times play the most productive soccer at the pitch. It is similar, not anything adjustments.
“Of route the gamers trade, however the way in which we play, not anything adjustments, we at all times teach in the similar manner, we at all times have a plan to come back to the sport, not anything adjustments.
“We have to look forward. There are more games coming and we have to be ready.”