Scrum-half Henry Pyrgos, 20, arrives from Loughborough University, while lock Robert Harley, 19, steps up from Scotland's National Academy.

BBC: Glasgow Warriors sign Edinburgh prop Ryan Grant

Another summer signing, Henry Pyrgos, who joined from Loughborough University, also impressed at scrum-half in the absence of injured Scotland captain Chris Cusiter.

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Glasgow hope Pyrgos will add depth to their options at scrum-half.

BBC: Glasgow Warriors sign Edinburgh prop Ryan Grant

Grant, who has signed a two-year deal along with Scotland Under-20 caps Harley and Pyrgos, has made only 14 appearances in three years with Edinburgh having previously gained experience with Border Reivers.

BBC: Glasgow Warriors sign Edinburgh prop Ryan Grant