Gaya is very quick across the ground and his unrelenting energy allows him to get into dangerous positions often for Valencia .
Going forward , the 20 - year - old Spaniard would give Chelsea a completely different edge .
Gaya is very quick across the ground and Spaniard 's unrelenting energy allows him to get into dangerous positions often for Valencia .
Going forward , the 20 - year - old Spaniard would give Chelsea a completely different edge .