Scottish Cup tie with Forfar, with BBC pundit Richard Foster stating that he should play through it. That drew a furious response from United manager Micky Mellon, and Siegrist looks to be out for the season with a fractured wrist.
That's pushed the Tannadice club to bring in Celtic youngster Doohan on an emergency loan as they look to progress to the Scottish Cup semi-finals.
A club statement said: " Dundee United has signed Goalkeeper Ross Doohan from Celtic on an emergency loan. "The 23-year-old enjoyed a successful loan spell at Ayr United where he made 80 appearances over two campaigns in the Scottish Championship between 2018-2020.
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