Since recovering from his cruciate ligament tear, Chiesa has never been injured more than 6 days (2 games) at anyone time due to a knee injury and has only had 3 in 2 years.
In the last 2 season, since both recovered from their injuries, Chiesa has missed a total of 27 games through Injury compared to Pedro Neto's 50, which is more games than Chiesa missed when he did his cruciate (45 games) and also as many as when Neto did his (52 games).
Chiesa was looking like he has his explosiveness back at the 2nd half of last season.
I also think Chiesa suits us better, Neto's main strengths (other than speed and dribbling) are his floated crosses, which aren't any good for our attack.