As ZSC's head coach Marc Crawford tells the Tages Anzeiger, Siegenthaler suffered a knee injury during a test match in Arosa with the Swiss junior national team: "We don't want to take any risks with the 17-year-old and will let him take a break for three weeks."
As for Mathias Seger, the defenseman took a longer rest after a long season including the World Championship in Minsk. This is why he will resume on-ice action later than his teammates but nevertheless participate in ZSC's training camp.
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