sentences:  Real Zaragoza, recently returned to the top flight, agreed terms to sign Uche in July 2009, subject to medical.He was presented officially on the 22nd, and signed a four-year contract; in only his second match, a 1–4 loss at Sevilla FC, he suffered a severe knee injury, going on to miss seven months.Uche recovered fully for Zaragoza's 2010–11 pre-season.