Christian Benteke's controversial winner on his Anfield debut ensured Liverpool maintained their 100% start to the new season with an unconvincing victory over Premier League newcomers Bournemouth. Liverpool's £32.5m summer signing from Aston Villa turned home from close range in front of the Kop after 26 minutes - but Philippe Coutinho was clearly offside as he also tried to reach Jordan Henderson's cross. Benteke was Liverpool's biggest summer investment and Rodgers needs him to deliver - and fast - to ease the pain of last season.