Chelsea´s decision to replace the Portuguese coach with the 52-year-old Israeli has spawned a number of anti-Semitic comments which Buck says are unacceptable.
Buck declared: "We welcome all constructive points of view. But there have been a few which could be viewed as racist and anti-Semitic and that must stop immediately. This is one thing we will not tolerate, whether in written correspondence, on the chat pages, on posters or banners, or through singing and chanting."
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