Raheem Sterling scored his first Arsenal goal and Jack Porter became the club's youngest ever starter in a 5-1 rout of Bolton in the League Cup on Wednesday, while Liverpool reached the last 16 with a 5-1 win against troubled West Ham. Sterling marked his maiden Arsenal start following his transfer deadline day move from Chelsea with a second-half strike in the third-round tie at the Emirates Stadium. The 29-year-old will hope his goal marks the start of a career revival after a disappointing two-year spell at Chelsea.