With the historic return to his boyhood club Everton, Wayne Rooney played his first match against Kenya's most successful club Gor Mahia in their pre - season and scored his debut goal.
The goal against Boniface Oluoch will go down the history line in Rooney's career as the goal that marked his official return to Everton. Rooney scored from a superb long range effort at the 35th minute as Everton beat Kenya Premier League giants 2-1. The goal in all sense resembled his long range against Arsenal in 2002 in the Toffees shirt. The goal ended Arsenal's 30-match unbeaten run, and also made Rooney the youngest goalscorer in Premier League history, a record that has since been surpassed twice, by James Milner and James Vaughan.
Debut goal for Everton
He made his senior debut on 17 August 2002 in a 2–2 home draw against Tottenham Hotspur, starting the match and assisting the first goal by Mark Pembridge. He became the second youngest first-team player in Everton history behind Joe Royle. The boy was booed by Spurs fans asking him "Who are ya"
His first senior goals came on 2 October when he scored twice in a 3–0 away win over Wrexham in the second round of the League Cup. These goals meant that Rooney was Everton's youngest-ever goalscorer at the time.
Rooney became the youngest player to feature for England when he earned his first cap in a friendly defeat against Australia at the Boleyn Ground on 12 February 2003 at 17 years and 111 days, coming on at half-time as manager Sven-Göran Eriksson fielded a different team in each half. On 6 September of that year, aged 17 years and 317 days, he became the youngest player to score for England, equalizing in a 2–1 away victory over Macedonia in a UEFA Euro 2004 qualifying match.
Rooney was given the number 8 shirt upon his arrival at Old Trafford. He made his United debut on 28 September in a 6–2 home win over Fenerbahçe in the UEFA Champions League, scoring a hat-trick and laying on an assist. These goals made Rooney the youngest player to score a hat-trick in the Champions League aged 18 years 335 days. His first season with Manchester United, however, ended without winning a trophy as they could only manage a third-place finish in the league, and failed to progress to the last eight of the Champions League.