amir arrives at the orphanage and identifies himself as sohrab's uncle. what dose he learn about the whereaouts of sohrab?

The man did not seem to want to talk about Sohrab. When Amir insisted, he revealed that a Talib official had taken Sohrab a month earlier. This official came every few months and paid to take a child with him; the man had no choice but to consent, or he knew he and all his children would be shot. This news so enraged Farid that he tackled the man and tried to strangle him to death until Amir intervened. The man told Amir that he could find the Talib official at Ghazi stadium, where the national team played soccer.