Baku, August 22, AZERTAC Azerbaijani grandmaster Shahriyar Mammadyarov has been held to a draw by Armenian Levon Aronian in the fifth round of the 2019 Sinquefield Cup in St. Louis. The event is the fifth leg of the 2019 Grand Chess Tour.The Sinquefield Cup features 12 world`s top chess players. The prize fund of the tournament is $325,000.