For Stevenson's standards, she hasn't been doing that bad in the past year and a half as far as retirements go. In 2008 in 25 events played, she only retired from 5 of them (2 consecutive).
Since the ITF events starting June 8, she has retired in 4 consecutive events.
ITF, USA, June 8 2009, $25,000, HARD (O)
R32 H2H WEINHOLD, ASHLEY (USA) 457 L 6-4 3-0 RET
ITF, CANADA, June 22 2009, $25,000, CLAY (O)
R32 H2H ALVES, MARIA FERNANDA (BRA) 472 W 6-3 6-4
R16 H2H WOWCHUK, BRITTANY (CAN) 1002 W 7-6(1) 6-2
Q H2H COHEN, JULIA (USA) 444 L 6-4 2-0 RET
ITF, USA, June 29 2009, $50,000, HARD (O)
R32 H2H LIGGAN, KELLY (IRL) 568 W 7-5 7-5
R16 H2H OKADAUE, CHIAKI (JPN) 305 W 6-2 7-6(5)
Q H2H (4) BRENGLE, MADISON (USA) 194 L 7-5 4-1 RET
ITF, USA, July 6 2009, $50,000, HARD (O)
R32 H2H (Q) ELIE, JENNIFER (USA) L 7-5 2-0 RET
So let's look at this from two possible perspectives. Either her shoulder has been giving her issues again OR poor sportsmanship is rearing it's ugly head again.
Believing that her shoulder is giving her problems for a minute, it seems pretty obvious that she should consider another career since she has been trying to rehabilitate her injury for years with almost no success considering all of her retirements and mediocre results.
Now if it is just poor sportsmanship or even a legitimate injury, shouldn't the WTA step in and do something about this. I mean players get fine for withdrawing from tournaments passed the deadlines. Isn't this an equal violation? I feel like someone should step in and put an end to this in some fashion