The following is just a simple before and after of what each batter has done before and after Matsui's injury (5/11/06). I'll be the first to say that this means very little. It's only been a 2 weeks worth of games and everyone goes through their slumps during the season but I thought I'd throw it out there as an illustration of who's been picking up the slack. I gave Damon & Sheffield passes because of the injuries but I'll include them when I revisit this again in a couple of weeks or so. In any case, make of the following whatever you will.

Jeter: Before: .349/.450/.524/.973 with 3 HRs, 27 Runs and 24 RBIs (32 GS and 126 ABs).
After: .348/.388/.522/.909 with 2 HRs, 7 Runs and 8 RBI (11 GS and 46 ABs).

Giambi: Before: .297/.511/.736/1.248 with 12 HRs, 21 Ks and 34 RBIs (31 GS and 91 ABs).
After: .129/.317/.161/.478 with no HRs, 12Ks and 1 RBI (10 GS and 31 ABs).

A-Rod: Before: .269/.389/.479/.868 with 7 HRs and 25 RBIs (32 GS and 119 ABs).
After: .295/.367/.545/.913 with 3 HRs and 7 RBI (11 GS and 44 ABs).

Posada: Before: .286/.402/.449/.851 with 4 HRs and 18 RBIs (26 GS and 98 ABs).
After: .381/.464/.857/1.321 with 3 HRs and 9 RBIs (8 GS and 21 ABs).

Cano: Before: .319/.342/.431/.773 with 2 HRs and 12 RBIs (29 GS and 116 ABs)
After: .279/.319/.326/.645 with no HRs and 6 RBIs (11 GS and 43 ABs)

Bernie: Before: .264/.303/.330/.633 with 1 HR and 12 RBIs (22 GS and 91 ABs).
After: .270/.341/.486/.828 with 1 HR and 6 RBIs (10 GS and 37 ABs).

Thanks to David Pinto's DbD Database for making this information easily accessible.