Celtic return to pre-season training this week with a former charge of Tony Mowbray's warning the players not to expect anything other than blood, sweat and toil.
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Mowbray's men will have to be in peak condition, says Sproule
Celtic return to pre-season training this week with a former charge of Tony Mowbray�s warning the players not to expect anything other than blood, sweat and toil.
