Can you maybe explain a bit if and how he could work for us? Keep hearing that he's pretty adventurous in his positioning, so might get into Eriksen's/Bruno's way
Its difficult to describe him as he's quite a unique player TBH. The closest thing I can think of is Fellaini but that only apply if you open a garage, there is a Lada and a Ferrari there and you conclude that they are both cars.
But let's go in detail.
Physically he's quite imposing. We're talking about a 6ft3 beast here. He knows how to use that physicality quite well. If I am allowed to stereotype in a positive way then I'd say he's got that Serbian "Vidic" like streak in him which means that he won't allow anyone to bully him with the ball. If we have a look at statistics he's last year Serie A 3rd best player in duels won and the 6th best player in aerial duels won. His work rate is also amazing. Last year he was the second most hardworking player in the Serie A after Brozovic and the 3rd in terms of blocking passes. He's also Lazio's no 1 man in terms of ball recovery and fouls committed.
That's were the similarities with Fellaini stop. Offensively The guy is 4th in last year's Serie A assist list with 11 assist. 2nd and 3rd have just 1 assist more then him. He is also the 2nd most goal prolific midfielder in the Serie A with 11 goals. The guy has a knack of scoring important goals. In fact last season he scored goals against Juve, Roma (derby) and Inter. He's also blessed with great technique, something he used efficiently rather then what Pogba usually does. The guy is the Serie A 7th most successful passer and the 3rd in terms of passes made. The guy is quite mobile and he's nowhere near as slow as people make him to be.
Is he an alternative to De Jong? The answer is no. Milinkovic Savic can run and press but he doesn't have that sniper hollywood pass that the Dutch man has. His completed passing percentage is at a disappointing 82% which is low compared to the likes of De Jong, Nevez and Ruiz (at 90%+) but is better then Mc'Sauce' (67%), Jordan Henderson (71%) and Fred (81%) TBH considering his workrate and his eye for goal he would be wasted in a deep position.