On Wednesday, the Arizona Diamondbacks filled the most apparent hole on their roster, trading for San Diego Padres left-handed relief pitcher Joe Thatcher.
A six-year veteran, statistically, Thatcher is a compelling upgrade over current Diamondbacks' left-handed specialist Tony Sipp, who curiously has better career numbers against right-handed batters than he does against lefties.
Thatcher has spent his entire career with the Padres, logging over 100 innings pitched against National League West opponents.
Take a look at new Diamondbacks' bullpen piece, Joe Thatcher, by the numbers.
Thatcher's career ERA.
Left-handed hitters' collective career batting average against Thatcher.
Thatcher's K/BB ratio against left-handed hitters.
Thatcher has pitched a total of 104.1 innings against NL West teams, with 26.2 coming against the Diamondbacks.
Thatcher's career ERA versus Diamondbacks' NL West opponents.
The number of earned runs Thatcher has given up to left-handed hitters this season; five fewer than Sipp.
Thatcher's K/BB against left-handed hitters in 2013.
Sipp has walked 13 more batters in 2013 than Thatcher, who has walked just four.
The on-base-slugging percentage (OPS) of Thatcher's second-half opponents.
The collective career batting average of current Los Angeles Dodgers hitters versus Thatcher.
The total number of hits current Dodgers hitters have recorded against Thatcher.