His pace is clearly below average now but as long as he offers some sort of assisting play he will be still of value to the team. His heading skills are astounding.
The blocked and spilled shot from Bennacer at minute 48 vs. Napoli would have been a goal-scoring chance for a younger and more pacey striker. Napoli's keeper was slow to react after the spill and OG did beat him by getting to the ball first. OG tried to roll the ball forward and away from the keeper's hand using the sole of his foot but he missed it completely. A more clinical striker would just get the to ball and chip it over the keeper all with one touch.
This was just a split second incident but it goes to show how much OG has lost his pace over the years.