Factbox - Former England test captain Alastair Cook

(Reuters) - Factbox on opening batsman Alastair Cook, who stepped down as England test captain on Monday. *Scored an unbeaten 104 on test debut against India at Nagpur in 2006 and made his one-day international debut against Sri Lanka in the same year. *Scored 766 runs in seven innings during the 2010-11 Ashes tour to help England to their first series win in Australia for 24 years.