In the end, the January transfer window proved underwhelming. This year's winter period pales in comparison to 2018 when the likes of Virgil Van Dijk, Aymeric Laporte, and Pierre-Emerick Aubameyang were involved in lucrative deals. Aside from a few notable exceptions, such as Frenkie de Jong and Leandro Paredes, this year's transfer window was a mixture of panic buys and baffling loan deals for aging stars. Here's a look at the worst signings of the January transfer window. 10. Denis Suarez Stuart MacFarlane / Arsenal FC / Getty Barcelona to Arsenal on season-long loan with option to buy Unai Emery reunited with a familiar face after Arsenalsigned Denis Suarez - whom the Spaniard managed at Sevilla - on loan from Barcelona for the rest of the season. But Arsenal failed to address their most glaring need this winter, signing a midfielder rather than adding to a defensive unit that's been depleted by injuries. Althoug...