Saski Baskonia
On 24 June 2012, Pleiß left Germany and signed a four-year contract with the Spanish club Saski Baskonia, one of the top teams of the Liga ACB. In the 2013–14 season, he averaged 12.4 points on 58.3 percent shooting and 6.0 rebounds in 21.8 minutes per game. He left Baskonia after two years.