Walker was 0-1 with a 15.19 ERA in six appearances for the Giants this season. He allowed three home runs and nine earned runs
in 5 1/3 innings.
Walker saved 23 games for the Giants last year, when he was 6-4 with a 4.23 ERA in 67 appearances. The year before he was 5-1 with
one save and a 4.24 ERA in 52 games.
The Giants have 10 days to trade, release or send him outright to the minors.
"It was very difficult," manager Felipe Alou said. "He just
hasn't been the same pitcher. His velocity was down, and he had no
life on his fastball. That has been missing since last year.
Personally, I love him and the way he plays. Everybody likes him."
Alou hopes that Walker, the ninth native San Franciscan to play for the Giants, goes down to Fresno and gets himself straightened out so he can return to San Francisco in his old form.
"We have no control on what's going to happen. He could be acquired by another team or he could just walk away from us," Alou said. "That would be a setback for us, because we know he is capable of pitching well, and he could end up doing it for someone else."