Date of Birth:06/02/1986
Height:6' 0" (182cm)
Weight:12st 8lbs (80.0kg)
Previous Clubs:Fiorentina (loan), Valenciennes, Valenciennes, Valenciennes
Sanchez, nicknamed The Rock, came to Villa with a big reputation, having impressed greatly at the 2014 World Cup in Brazil for Colombia.
Paul Lambert expected big things from the likeable 29-year-old but admitted that he threw the Quibdo-born midfielder in too soon after arriving.
He came on against Newcastle in the Villa Park seasonal opener, started in the 1-0 League Cup loss to Leyton Orient in B6 and also came on in wins over Hull and Liverpool.
Sanchez came off in the 3-0 home defeat to Arsenal - and following that Lambert spoke of blooding the midfield anchorman prematurely, although there was a sickness bug in camp ahead of the Gunners test.
Sanchez improved with every passing week in claret and blue - excelling at breaking up play in the central ground.
Tim Sherwood spoke glowingly of the midfielder after arriving as boss.
Sanchez was sent off in the vital 1-0 win at Tottenham in April 2015, meaning he missed the FA Cup semi-final at Wembley against Liverpool.
Sherwood said Sanchez had "sacrificed himself" for the good of the team after his break-stopping tackle, which the manager greatly appreciated.
Sanchez opened his account in the 3-2 defeat to Manchester City and also came on as a late sub in the showpiece FA Cup final against the Gunners.
Sanchez left Colombia at the age of 17 to join Uruguayan club Danubio, where he was a team-mate of Uruguay international Edison Cavani.
He moved to River Plate Montevideo in search of first-team football and made his first professional appearance in 2005.
River Plate became contenders for trophies during his spell at the Uruguayan club and he began to attraction attention from European clubs, moving to French Ligue 1 club Valenciennes in 2007.
He made 178 appearances during six years in northern France before making the move to Elche in August 2013 following their promotion to La Liga, playing a key role in Elche retaining their status in the Primera Division for the first time in more than 40 years.
Sanchez made his international debut in May 2007 in a match against Panama.
He has gone on to become a key member of the Colombian team and played a vital role in their progression to the World Cup quarter-finals in Brazil, appearing in four of the five games before their elimination by the hosts.