Chelsea have increased their striking options with the signing of attacker Alexandre Pato on a six-month loan from Corinthians.With Diego Costa susceptible to hamstring injuries and Radamel Falcao sidelined since 31 October with an ongoing thigh problem, the Blues were in need of firepower as they bid to climb the Premier League and make progress in the UEFA Champions League, where they face Paris Saint-Germain in the round of 16.Pato, who has spent the last two years on loan at São Paulo, could yet provide that if his record at AC Milan is anything to go by. The Brazilian international scored 51 goals in 117 Serie A games and six in 22 European Cup outings between January ...