SPORT1, who claim the in-demand central defender is set to agree a four-year deal for a move to the Spanish capital. Rudiger's future has been the subject of speculation over the course of the season, and Thomas Tuchel has now confirmed the German international has informed the club of his decision to leave.
The Chelsea boss told reporters following Sunday's victory over West Ham: "We gave everything and now we enter a situation where we can't fight any more because of the sanctions and now Toni will leave.
Our hands are tied. I don't know what would have been the outcome [without the sanctions]. That's his decision. It's not a nice one for us but we don't take it personally."He is a key figure and will stay a key figure for us.
We will miss him a lot. He is a guy who gives people courage, who people are a bit afraid of. He plays 55 games a season for 90 minutes at an outstanding level.
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