When the Mariners first snagged Felnin Celesten at the beginning of the 2023 MLB international signing period, there was plenty of excitement. He was ranked as the second or third-best overall international prospect and regarded as a potential five-tool player, so it was understandable why the M's were prepared to use $4.7 million of their near $6.37 million bonus pool to acquire him.
Since then, it's been one stumbling block after another for Celesten, not helped by injury issues including a hamstring strain and season-ending surgery last year on his left hamate. As a result, it's not surprising that his results have been up and down and lacking consistency, although the promise has still been there enough times to keep people enticed.