World player of the year Kaka is a doubt for Brazil's friendly with Sweden in London next week after pulling up with a thigh problem early on in AC Milan's 2-1 home defeat by Sampdoria in Serie A on Wednesday.
"Kaka won't be with us at Torino (on Saturday) and I don't think he'll go to his national team either," Milan coach Carlo Ancelotti told La Gazzetta dello Sport. The Brazilian playmaker had reovered from a back problem he suffered in last weekend's 2-1 defeat at AS Roma to start for the European champions on Wednesday.