Francesco Chicchi, won the second stage of the Tour de San Luis in Argentina, a day after he won the opening stage.
The Omega Pharma Quick Step rider beat his team-mate Tom Boonen over the line in another sprint finish on the 145.3km stage from Fraga to Juana Koslay.
Alberto Contador finished 45th.
Chicchi now leads the General Classification by fourteen seconds from JJ Haedo.