Inverness CT begin their Scottish Championship campaign at home to Dundee United on the opening day of the season.
Scottish Championship Football
Dundee sign midfielder Lewis Spence on a one-year deal and extend defender Kostadin Gadzhalov's stay for another year.
Alex Harris joins Falkirk on a two-year contract following the winger's release from Hibernian.
Aberdeen boss turns down 'a £1.5m jackpot' to stay at Pittodrie, as three English clubs target Celtic's Jozo Simunovic.
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Newly appointed Inverness boss John Robertson insists he was as "surprised as anybody" when the call came in from the Highland side.