West Ham United manager Alan Pardew insists that Argentinian duo Javier Mascherano and Carlos Tevez have long-term futures at Upton Park.
The pair have struggled to settle since their arrivals from Brazilian side Corinthians, but Pardew has ruled out a quickfire exit by the South Americans.
He told BBC Sport: "We've put in a lot of work to ease the settling-in process and hopefully we'll get time to see it through.
"Some of the criticism our guys have had in their settling-in period has been unfair.
"They've gone through huge changes and still haven't got a grasp of English yet, but they're working on it and their work in training has been excellent."
Meanwhile, Hammers midfielder Hayden Mullins has admitted that the arrival of Mascherano and Tevez did have a destabilising effect at Upton Park.
He told the club's official website: "When Carlos and Javier came in and the whole whirlwind started, it did have a bit of an effect.
"But we certainly can't blame that for the losing run we had between September and October.
"It was just a case of going on a bad run, which all teams experience at one point or another."