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Reto Keller (born 4 June 1994 in Münsingen) is a Swiss curler from Bern. Keller threw fourth stones for the Swiss junior team (skipped by Yannick Schwaller) at the 2014 World Junior Curling Championships, winning a gold medal. Keller was invited to be the alternate on the Swiss team at the 2015 World Junior Curling Championships. The team won a silver medal, though Keller didn't play in any matches.