50 youngsters to watch in Europe’s top 5 leagues: 45-41 45. Valentin Rosier (Dijon / 21 / D(R/L)) - WhoScored.com rating 6.98*Emerging as a first choice starter in the Dijon backline this season, Rosier’s ability to play at either right or left-back certainly plays into his favour. The youngster ranks fifth in Ligue 1 for interceptions per 90 minut...