Right winger: Charles Aranguiz (Chile)
Whilst the likes of Alexis Sanchez and Eduardo Vargas have hogged all the limelight, Aranguiz has been the orchestrator-in-chief, providing three assists across the two games - the highest in the competition so far.
His lightning fast speed coupled with the ability to pick out passes have made Aranguiz highly deleterious down that right flank, who's also laid a staggering 11 key passes. The Bayer Leverkusen man's creativity will play a key role in Chile's fortunes in this important clash and beyond.
Left winger: Alexis Sanchez (Chile)
Contrast to his appalling season with Manchester United, Sanchez has fired at all cylinders with Chile in Copa America, so much so that it might have tickled the Red Devils faithful pink.
With a goal apiece against Japan and Ecuador, not to mention an assist as well in that barnstorming opener, he appears to be a player reborn. He's currently the highest rated player from the competition on WhoScored.com with 8.64, as his rich vein of form holds La Roja in good stead.