The problem with Pjanic is that we bought him when he was 26, and he began physically declining by the age of 29. We only got about 2 great seasons out of him.
Looking at Pjanic’s career, he has been playing top flight football since he was 17 (his first season in Ligue 1 was in 07/08). He has so much mileage on his legs already. He reminds me of Cesc Fabregas. Another midfielder who broke through at a very young age and also declined relatively young.