I doubt he'll make Arsenal a premiership threat, just solidify their options.
Sold Silvestre to the Arse this morning, first player since Brian Kidd to go between the clubs. Hardly worried, Mikael was a good servant to the club-I personally think his best year was 2002/03 when about a third of the way through he switched from LB to CB and formed a Premiership winning partnership with Rio.
I doubt he'll make Arsenal a premiership threat, just solidify their options.