Red Sox, Reds, Astros, Mariners, and Rays pens

This week, the column checks in with the Boston Red Sox, Cincinnati Reds, Houston Astros, Seattle Mariners, and Tampa Bay Rays bullpens, starting with the Red Sox, where closer Kenley Jansen (RHP, BOS) has four saves and a 2.70 ERA, but a 6.51 xERA, 1.80 WHIP, and 1% K%-BB%. How concerned should we be about Jansen?

Here are the year-to-date numbers:

BOS	SV	HD	IP	ERA	xERA	WHIP	K%	K-BB%	HR/9
Jansen, Kenley	4	0	6.2	2.70	6.51	1.80	27%	1%	0.0
Slaten, Justin	1	3	12.1	0.73	3.10	0.41	22%	19%	0.0
Martin, Chris	0	3	8.0	4.50	3.15	1.25	29%	25%	1.1
Rodriguez, Joely (L)	0	3	7.1	4.91	3.05	1.50	24%	20%	2.5
Bernardino, Brennan (L)	0	1	7.1	1.23	2.39	0.68	39%	26%	0.0
Weissert, Greg	0	0	8.2	2.08	4.65	1.27	22%	13%	2.2
Winckowski, Josh	0	0	11.2	4.63	3.97	2.06	27%	13%	0.8

As always in the early going, a caution that 6.2 innings is not...

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