Arturo Vidal has called on Chile to build on their Copa America Centenario victory over Bolivia as they look to seal progression to the knockout stages against Panama.
The defending champions made a stuttering start to the defence of their 2015 crown as they were beaten by Argentina in the opening game of Group D.
That duly arrived, though it came courtesy of a controversial late penalty decision, and Juan Antonio Pizzi's side now only need a point against Panama to secure their progression thanks to a superior goal difference.
"Panama are physically very strong," he told Radio Cooperativa.
"We are going to better prepare for the game and hopefully will be able to show all the quality we have.
"These matches are very difficult, you have to keep improving, starting now."
Panama are also shorn of striker Valentin Pimentel (hip) as they look to record a second win of the tournament – having beaten Bolivia 2-1 in their opener.
Head coach Hernan Gomez knows they face an uphill challenge to dethrone the holders – especially given their depleted numbers – but they will not change their approach.
"Chile has an advantage in every way," he acknowledged. "They are the champions, and have greater experience in tournaments.
"They are one of the best teams in the world in recent times. But we will not change our style."
