The Spanish right-back will wear the Blues' No.28 jersey while the former Wigan winger takes over the No.13 shirt, last worn by former Germany international Michael BallackNew Chelsea signings Cesar Azpilicueta and Victor Moses have been assigned their squad numbers.
Azpilicueta, the promising young right-back signed for a reported 7 million pounds from Marseille, will wear the No.28 jersey.
Moses, signed from Wigan after a lengthy transfer saga will don No.13, last worn at the club by ex-Germany captain Michael Ballack.
Both players are in line to make debuts in Friday's Super Cup clash against Atletico Madrid in Monaco.
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