 Complete the following phrase:  In 2003, Schumacher again competed with Williams alongside Montoya. He was unable to take part in winter testing in January, prior to the season because of reoccurring back pains, although he later returned in February. He endured a good first half of the season: Schumacher scored points in the opening seven races, and clinched his first podium of the season with second place in Canada. Schumacher backed up the results by taking consecutive victories in the European Grand Prix and the 