The 21-year-old replaces Manchester City striker Gabriel Jesus, who has been ruled out of the fixtures with a calf injury.
Guoan now sits second in Group B with 25 points, with two rounds in the first stage remaining, and has booked a spot in Group C for the championship race.
"Bryan Reynolds has flourished whenever he has gotten an opportunity," the club's president Dan Hunt said in a club statement. "He has a bright future and we're thrilled that he'll continue to grow with us at FC Dallas and at the national team level."
Jean Mota scored the winner eight minutes from time as Santos clinched their third win from four matches.
The match went ahead and West Ham defeated their League One rivals 5-1 with assistant Manager Alan Irvine under charge.
Due to challenges in securing all logistical arrangements for players and participants, staging the Asian leg in November as originally planned was no longer a viable option, the world governing body of badminton said in a statement.
The Championship League has been expanded to a full World Snooker Tour ranking event this season, featuring 128 players in three stages over 21 days.
Several media say Szalai unsuccessfully tried to convince the club to stick to its promise to pay back the wage cut implemented due to financial losses caused by the COVID-19 pandemic.
On the often considerable cost of skiing, Miao noted, ‘It is true that the people involved in skiing are those with a certain material foundation to do so.’
Fans and half of the club are puzzling about who could be the rescuer leading the side out of this deep crisis. Former Schalke and Leipzig coach Ralf Rangnick is one name in the list.
Stage One involves 32 groups of four players, with the player who tops each group progressing to Stage Two.