West Ham United apparently have a real chance of signing free agent Sergi Roberto this summer. The 32-year-old was released by Barcelona when his contract expired at the end of June, and West Ham are now in the race for his signature. Interestingly, it is being suggested that Barca could actually re-sign him, but it seems like Roberto wants a fresh start. Hammers head coach Julen Lopetegui is quite clearly desperate to sign a new right-back this summer, and is apparently still trying to force through a move for Manchester United ace Aaron Wan-Bissaka. However, Lopetegui clearly has other targe…