By Sean Walsh Arsenal manager Mikel Arteta has claimed he is happy with his current striker options amid ongoing speculation over signing a new star forward. The Gunners are widely expected to challenge for and perhaps even win the Premier League title this season after finishing second in each of the last two campaigns, pushing Manchester City to the brink twice. Heading into the summer, Arsenal were expected to improve their options up front, either by signing a new starting centre forward or depth for the wings. But to this point, they have only made additions in defensive areas. David Raya…