Cubs outfielder Alfonso Soriano expects to miss about a week after straining his left groin while diving for a ball Monday night against the Padres. The Cubs mulled putting the five-time All-Star on the 15-day disabled list, even though an MRI on Tuesday revealed no major structural damage. Instead, they optioned right-handed pitcher Angel Guzman to Triple-A Iowa just before Tuesday's game against the Padres and called up top prospect Felix Pie, who started in center and batted leadoff in his major-league debut.