Tottenham Hotspur are doing their best to carefully build up captain Son Heung-min's fitness by managing his minutes on the pitch, manager Ange Postecoglou said on Friday ahead of their Premier League clash against Ipswich Town. Son missed games for Spurs and South Korea earlier in the season due to a hamstring injury, before playing in a 4-1 win over West Ham United last month, an appearance which exacerbated the winger's injury and kept him out of the next three matches. He has been used