In terms of a stage, from an athletic perspective nothing exceeds the Olympic games. Two former Iowa basketball players shined on that stage on Sunday. First there was an early morning game for Peter Jok. The former All Big Ten performer is playing in the Olympic games for South Sudan, his home country. The South Sudan squad put a huge scare in the United States team in an exhibition contest leading up to the Paris games, but they were still not expected to perform well. But, on Sunday they did just that, posting a 90-79 victory over Puerto Rico. Jok came off the bench, playing 22 minutes and …