diff --git a/src/Curl/MultiCurl.php b/src/Curl/MultiCurl.php
index 516b5cb..3ca2e07 100755
--- a/src/Curl/MultiCurl.php
+++ b/src/Curl/MultiCurl.php
@@ -1016,6 +1016,8 @@ class MultiCurl
                                         'cURL multi add handle error: ' . curl_multi_strerror($curlm_error_code)
                                     );
                                 }
+
+                                $curl->call($curl->beforeSendCallback);
                             } else {
                                 $curl->execDone();
 
diff --git a/tests/PHPCurlClass/PHPCurlClassTest.php b/tests/PHPCurlClass/PHPCurlClassTest.php
index 41ee0ac..fed7c61 100644
--- a/tests/PHPCurlClass/PHPCurlClassTest.php
+++ b/tests/PHPCurlClass/PHPCurlClassTest.php
@@ -4293,4 +4293,25 @@ class CurlTest extends \PHPUnit\Framework\TestCase
         $this->assertEquals(Test::TEST_URL, $curl->url);
         $this->assertEquals(Test::TEST_URL, $curl->effectiveUrl);
     }
+
+    public function testBeforeSendEachRequest()
+    {
+        // Ensure Curl::beforeSend() is called before each request including retries.
+
+        $test = new Test();
+        $test->curl->setOpt(CURLOPT_COOKIEJAR, '/dev/null');
+        $test->curl->setRetry(5);
+
+        $before_send_call_count = 0;
+        $test->curl->beforeSend(function ($instance) use (&$before_send_call_count) {
+            $before_send_call_count += 1;
+        });
+
+        $test->server('retry', 'GET', ['failures' => 5]);
+
+        $this->assertEquals(6, $before_send_call_count);
+        $this->assertEquals(6, $test->curl->attempts);
+        $this->assertEquals(5, $test->curl->retries);
+        $this->assertFalse($test->curl->error);
+    }
 }
diff --git a/tests/PHPCurlClass/PHPMultiCurlClassTest.php b/tests/PHPCurlClass/PHPMultiCurlClassTest.php
index 73b0074..df633b0 100644
--- a/tests/PHPCurlClass/PHPMultiCurlClassTest.php
+++ b/tests/PHPCurlClass/PHPMultiCurlClassTest.php
@@ -5015,4 +5015,27 @@ class MultiCurlTest extends \PHPUnit\Framework\TestCase
 
         $this->assertEquals(3, $request_count);
     }
+
+    public function testBeforeSendEachRequest()
+    {
+        // Ensure MultiCurl::beforeSend() is called before each request including retries.
+
+        $multi_curl = new MultiCurl();
+        $multi_curl->setOpt(CURLOPT_COOKIEJAR, '/dev/null');
+        $multi_curl->setHeader('X-DEBUG-TEST', 'retry');
+        $multi_curl->setRetry(5);
+
+        $before_send_call_count = 0;
+        $multi_curl->beforeSend(function ($instance) use (&$before_send_call_count) {
+            $before_send_call_count += 1;
+        });
+
+        $instance = $multi_curl->addGet(Test::TEST_URL, ['failures' => 5]);
+        $multi_curl->start();
+
+        $this->assertEquals(6, $before_send_call_count);
+        $this->assertEquals(6, $instance->attempts);
+        $this->assertEquals(5, $instance->retries);
+        $this->assertFalse($instance->error);
+    }
 }