#2 Worst: Diego Rico
Eddie Howe had a couple of injury problems to address and he did so by handing first starts to both Deigo Rico and Jefferson Lerma - a statement of intent and confidence from Eddie Howe.
Diego Rico was more casual and careless than any other player on the pitch. He was beaten for skill and pace, not once but many a time. Be it Willian's drive, Azpilicueta's return pass, N'Golo Kante's energy or Eden Hazard's magic, Rico wasn't able to handle any of the above.
Also to mention, it never seemed like he would create something on the other end either, despite playing in a wing-back position. He was also out of position on few occasions, which caused further problems for the center-backs. Welcome to the Premier League!