Right fielder Floyd left after three innings with a sore neck,
and manager Lou Piniella said the veteran was also dizzy after
hitting the ground following a collision at first base.
First baseman Ward departed earlier after straining his right
calf muscle while trying to catch a popup in the second inning.
Ward was having an MRI exam after the game.
"I don't feel great. I don't feel horrendous, either," Floyd
said. "I'm a little upset and at the same time banged up also.
When you hit the ground like that and don't know which way you're
going, you don't know what is going to happen. Right now my neck
and my whole left side took a hit. We'll see how it is tomorrow."
Floyd collided with Giants pitcher Matt Morris, who was covering
first in an attempt to turn a double play on Floyd's grounder in
the bottom of the third. Floyd stayed in the game and later scored
all the way from second on a passed ball by Bengie Molina.
He was replaced to start the fourth by Angel Pagan.
Floyd had just returned to the Cubs' lineup Wednesday after
missing three games with a sore left shoulder he hurt diving for a
ball in the outfield on Saturday.
Ward, starting at first for a second straight day while Derrek Lee serves a five-game suspension, raced in from first to try and
catch Pedro Feliz's high popup between the plate and mound. Ward
slid on his knees trying to make the play but the ball dropped in
for a single.
Mark DeRosa replaced Ward at first base.
If both players are unavailable for several days and with Lee
serving a suspension, the Cubs could make another roster move.
Earlier Thursday, they traded shortstop Cesar Izturis to the
Pirates for a player to be named later and called up Jake Fox from
Fox, who can catch and play the infield and outfield, grounded
into a double play in his first major league at-bat.