Watford have signed defender Adam Masina from Serie A side Bologna for a reported £3.5m.

The 24-year-old left back has agreed a five-year deal at the Premier League side, who finished 14th in the league last season.

The Morocco-born player is a former Italy Under-21 international and has played 131 times for Bologna.

He is Watford's fourth signing of the summer following the arrivals of Gerard Deulofeu, Marc Navarro and Ben Wilmot.