Randy Johnson was ready for anything in his San Francisco Giants debut — even an attempt to steal home by a catcher.

Former Arizona teammate Brandon Webb, however, didn't make it to the mound Friday. His first spring start was pushed back because of a sore right forearm.

Johnson deftly stepped off the rubber and threw out Kansas City's Miguel Olivo when he tried to steal home in the second inning of the Giants' 6-1 loss in Scottsdale, Ariz.

"Just when you think you've seen it all ... ," the 45-year-old Johnson said.

Kansas City scored one run in two innings against Johnson. Ryan Shealy was hit by a pitch in the second inning and went to second on Olivo's single. Both runners advanced on a wild pitch and Shealy scored on Mitch Maier's groundout.

"Other than the senior moment I had with my splitter by hitting the first batter and throwing another one in the dirt, I felt pretty good, considering the last two years at this time I wasn't pitching in games," Johnson said.

Johnson, five victories away from 300 in his career, did not make his first start until midway through spring the last two seasons with Arizona while recovering from back operations.

Kansas City starter Zack Greinke, who signed a four-year, $38 million contract this offseason, retired all six batters he faced with one strikeout.

At Tucson, Ariz., Webb threw off flat ground in the morning and said his arm felt better than it had the previous day, and he expects to make his next scheduled start March 4 against Mexico.

"I ended up throwing and felt not 100 percent but 80 percent better than I did yesterday," Webb said.

Webb said he would test his arm by throwing off the bullpen mound Sunday.

At Port St. Lucie, Fla., Johan Santana was scratched from his second straight start by the New York Mets because of a sore left elbow.

After Santana missed a scheduled "B" game appearance against Italy's national team, the Mets said their ace would not take his turn Tuesday against the St. Louis Cardinals.