Frederic Veseli crossed the Manchester divide from City to United because he felt the Blues' priorities have drifted away from nurturing young players in the pursuit of major honours.
The 19-year-old, who captained the Swiss Under-17 side crowned world champions in 2009, was United's only deadline-day signing and will initially link up with Warren Joyce's reserve team squad before pushing for a chance at senior level.
Veseli hoped to get his chance at City this term after being part of Roberto Mancini's squad for the pre-season tour of the United States. However, the opportunity never came and his agent, Adam Bouskouchi, told Press Association Sport: "These days, Manchester City are chasing titles and major trophies."
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