Chelsea blocked a transfer approach from Bayern Munich late in the January window, reports claim.
Bayern were active in the winter market, with two of their most notable additions being Eric Dier and Sacha Boey from Spurs and Galatasaray respectively.
However, the Bundesliga champions were rocked by an injury blow to Kingsley Coman and that affected their transfer plans.
In December Bayern confirmed the capture of Bryan Zaragoza from Granada €15 million but the initial arrangement was for him to join up next season.
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Yet the Bavarians paid €4 million in compensation to bring him to the Allianz Arena sooner, on 1 February.
But Fabrizio Romano claims that there was another unsuccessful attempt to recruit a new winger on loan.
They made a move to bring in Ukraine international Mykhailo Mudryk until the end of the season, having seen his first-team opportunities hard to come by at Stamford Bridge.
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But the enquiry was immediately shot down by Chelsea, who informed Bayern that he was not available.
"Before bringing in Bryan Zaragoza, Bayern, they asked about the possibility of signing Mykhaylo Mudryk from Chelsea," Romano said, on his Here We Go Podcast.
"He is a player appreciated by Bayern and they feel in this moment he is not playing on a regular basis and so they tried.
"But from Chelsea, there was not even a discussion and in hours Bayern knew it was not possible to discuss for Mudryk."
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Mudryk signed for Chelsea in last season's January window, joining in a £88 million move from Shakhtar Donetsk after previously looking Arsenal-bound.
He had an impressive debut cameo against Liverpool but has otherwise struggled for the Blues, scoring just three goals in 44 appearances.
The 23-year-old, who scored his first goal in October, recently challenged a Chelsea fan to a £10,000 1v1 battle after engaging in an angry private message Instagram exchange.
Topics: Chelsea, Bayern Munich, Mykhailo Mudryk