Iran national football team started its' match against Vietnam on Saturday.
National football team coach Carlos Queiroz said Iran will not underestimate Vietnam under any circumstances.
National Iranian football team defeated the national Yemeni football team in Mohammad Bin Zayed Stadium in Abu Dhabi.
Iran national football team have performed consistently over the last four years under the coaching of Carlos Queiroz.
The 17th AFC Asian Cup begins in Abu Dhabi, United Arab Emirates on Saturday, starting a month-long tournament to find the best team in the continent.