Mark McGwire appears to be closing in on a home run title he insists he couldn't care less about.

McGwire hit No. 64 today, tying him for 10th on the career list and putting him two ahead of Sammy Sosa, who had to be content with the Chicago Cubs' 6-3 victory over the St. Louis Cardinals.

McGwire has three home run titles (1987, 1996 and 1998), and earlier in the week he said nobody remembers them.

"I'm not thinking about home runs or how many I have or he has," McGwire said. "I'm thinking about the game."

McGwire, who walked his last three times at the plate, has five homers in his past six games. Sosa, who was 1 for 5 with a single and didn't clear the infield his other four at-bats, has one homer in his past 10 games.

Sosa said he wasn't pressing or tired.

"I'm not here to try and hit everything out of the ballpark," Sosa said. "Whatever happens, happens. If I finish with 62, that's pretty good for me. I'm real confident with what I have. Tomorrow is my last game, so I'm going to go out there and do the best that I can."

The Cubs and Cardinals close the regular season Sunday. McGwire said he won't change his approach to try to close out Sosa.

Besides putting some distance between himself and Sosa, McGwire tied Willie McCovey and Ted Williams at 521 for his career.

In the last four seasons, McGwire has hit 244 home runs, an average of 61 per season. Sixty-one was the record held by Roger Maris for 37 seasons before McGwire hit 70 and Sosa 66 last year.