By Jamie Spencer Arsenal manager Mikel Arteta had already dampened hopes that the Gunners might bring Brentford striker Ivan Toney – or indeed any other new ‘number nine’ – to the club before the end the England international made a triumphant return to action on Saturday. In tandem with sporting director Edu, Arteta has overseen the redevelopment of the Arsenal squad in recent years, returning the club to the Premier League title race. But the squad still lacks a consistent goalscorer a la Thierry Henry or Ian Wright from years gone by. No Arsenal player scored more than 15 times in all compe…