China and Kuwait both finished their friendly with just 10 men but it was the former who ran out 2-0 winners on Wednesday.
Jose Camacho's side triumphed in Changsha thanks to strikes from Gao Lin and Yu Dabao, either side of half-time.
China had Zhao Xuri sent off while Kuwait's Fahad Al Enezi was also given his marching orders.
The victory was China's eighth in their last nine home matches, and they host Jordan in a World Cup qualifier on February 29.
In Asuncion, Paraguay ended Guatemala's six-match winning streak with a 2-1 victory.
Edgar Benitez gave Paraguay the lead on 34 minutes and an Ariel Bogado penalty with 20 minutes remaining looked to have sealed the result.
Carlos Ruiz pulled a goal back for Guatemala with eight minutes left but it was no more than a consolation as Paraguay won their second match in a week after their 2-0 win over Chile last Wednesday.
